Agricultural Science Commons^™

Determination By Hplc Fluorescence Analysis Of The Natural Enantiomers Of Sex Pheromones In The New World Screwworm Fly, Cochliomyia Hominivorax, K. Akasaka, D. A. Carlson, T. Ohtaka, H. Ohrui, K. Mori, D. R. Berkebile

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Bioassays of six racemic synthesized candidate sex pheromone compounds against male New World screwworm Cochliomyia hominivorax (Coquerel) flies showed that the most potent bioactivity was found with 6-acetoxy-19-methylnonacosane and 7-acetoxy-15-methylnonacosane compared with four other isomeric acetoxy nonacosanes and a larger aliphatic ketone. As all these methyl-branched compounds have two asymmetric carbons and four possible enantiomers, characterization of the natural enantiomers was essential. All four enantiomers for the two most bioactive isomers of the natural sex pheromone were synthesized for bioassay. Hydrolysis and derivatization of these enantiomers with different fluorescent reagents was followed by columnswitched high-performance liquid chromatography. The use of …

Fluid Fertilizer’S Role In Sustaining Soils Used For Bio-Fuels Production, John L. Kovar, Douglas Karlen

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

The short- and long-term effects on soil nutrient cycling, physical properties, and biological activity of striving for higher grain yields and removing crop residues for bio-fuels production must be understood to provide more quantitative crop and soil management guidelines. This study focuses on potassium (K) and sulfur (S) requirements of corn (Zea mays L.) grown for bioenergy feedstock production. Our objectives for 2008 were to: i) evaluate the performance of several S fertilizers, including liquid ammonium thiosulfate (12-0-0-26S), as S sources for corn grown in Iowa, and ii) establish a comprehensive tillage, nutrient management, crop residue removal, and cover …

Genotypic Variability In Mineral Composition Of Switchgrass, H. M. El-Nashaar, G. Banowetz, S.M. Griffith, M. D. Casler, Kenneth P. Vogel

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Switchgrass (Panicum virgatum L.) is a warm season perennial grass with great potential as an energy crop in the USA. It is widely adapted to many regions of the country, produces large amounts of biomass, serves as a useful forage grass, and provides ecosystem services that benefit soil and water quality and wildlife. Biological and thermochemical technologies are being developed to convert herbaceous biomass, including switchgrass, to energy. The objective of this research was to determine the effect of genotype and production environment on the concentration of minerals that affect the suitability of switchgrass for thermochemical conversion and to …

Comparison Of Passive And Active Canopy Sensors For The Estimation Of Vine Biomass Production, Stamatis Stamatiadis, Dimitris Taskos, Eleftheria Tsadila, Calliopi Christofides, Christos Tsadilas, James S. Schepers

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Recent advances in optical designs and electronic circuits have allowed the transition from passive to active proximal sensors. Instead of relying on the reflectance of natural sunlight, the active sensors measure the reflectance of modulated light from the crop and so they can operate under all lighting conditions. This study compared the potential of active and passive canopy sensors for predicting biomass production in 25–32 randomly selected positions of a Merlot vineyard. Both sensors provided estimates of the normalized difference vegetation index (NDVI) from a nadir view of the canopy at veraison that were good predictors of pruning weight. Although …

Comparative Metabolism Of Benzo(A)Pyrene By Ovarian Microsomes Of Various Species, Deacqunita L. Harris, Ashley C. Huderson, Mohammad S. Niaz, J. Joe Ford, Anthony E. Archibong, Aramandla Ramesh

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Knowledge of the ability of the female reproductive system to metabolize polycyclic aromatic hydrocarbons (PAHs) is critical to the diagnosis and management of female infertility and for risk assessment purposes. The PAHs are a family of widespread pollutants that are released into the environment from automobile exhausts, cigarette smoke, burning of refuse, industrial emissions, and hazardous waste sites. In exposed animals, PAHs become activated to reactive metabolites that interfere with target organ function and as a consequence cause toxicity. The extent of susceptibility to PAH exposure may depend on the ability of animals to metabolize these chemicals. The present study …

Tests Of Concepts For Streamflow Sampler Design, John A. Replogle

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Total-load sampling has been a perpetual problem in sediment monitoring. Usually a combination of bed-load sampling devices, suspended load suction samplers, and some kind of flume, for total flow rate, is used. Total-load, sediment-sampler-design concepts that can perform all three of these functions are proposed. The resulting designs would require installation at sites that can provide a step-overfall height about equal to the maximum channel flow depth. The concepts are simple, but appear to have been overlooked or ignored for the past many decades, and are based on a moving conveyor belt that is long and wide, with many slots, …

Protocol For Indicator Scoring In The Soil Management Assessment Framework (Smaf), Brian J. Wienhold, D. L. Karlen, S.S. Andrews, D. E. Stott

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Assessment tools are needed to evaluate agronomic management effects on critical soil functions such as carbon sequestration, nutrient cycling and water partitioning. These tools need to be flexible in terms of selection of soil functions to be assessed and indicators to be measured to ensure that assessments are appropriate for the management goals. The soil management assessment framework (SMAF) is being developed to meet this need. The SMAF uses soil physical, chemical and biological indicator data to assess management effects on soil function using a three-step process for (1) indicator selection, (2) indicator interpretation and (3) integration into an index. …

Morphology Of The Turkey Vagina With And Without An Egg Mass In The Uterus, M. R. Bakst, V. Akuffo

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

In this study we examined the gross anatomy of the uterus and vagina in turkeys in egg production. With no uterine egg mass, removal of the tunica serosa that enclosed the uterus revealed deep periodic in-folding of the muscularis transversely circumscribing the sac-like segment. When the connective tissue embracing the neutral buffered formalin fixed vagina was completely teased free, the exposed tubular segment was shaped as a counter-clockwise spiral or as a series of angular, random bends. The uterovaginal junction was flush with the uterine mucosa or projected slightly into the uterine lumen. With a uterine egg mass, the deep …

Red Angus Osteopetrosis Sequence Information, Tim Smith

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

The recessive genetic defect of osteopetrosis (marble bone disease) in Red Angus cattle has been defined by a mutation in the bovine SLC4A2 gene located on Bos Taurus chromosome 4. The mutation was discovered in a joint effort by the Red Angus Association of America (RAAA), University of Illinois, University of Nebraska-Lincoln, University of Wyoming, and the Agricultural Research Service of the United States Department of Agriculture (USDA-ARS). The information is available for public use without restriction, taking into account the disclaimers and caveats described below.

The causative mutation is a deletion of ~2721 bp of the SLC4A2 gene. This …

Upic: Perl Scripts To Determine The Number Of Ssr Markers To Run, R. S. Arias, Linda L. Ballard, Brian E. Scheffler

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

We introduce here the concept of Unique Pattern Informative Combinations (UPIC), a decision tool for the cost-effective design of DNA fingerprinting/genotyping experiments using simple-sequence/tandem repeat (SSR/STR) markers. After the first screening of SSR-markers tested on a subset of DNA samples, the user can apply UPIC to find marker combinations that maximize the genetic information obtained by a minimum or desirable number of markers. This allows a cost-effective planning of future experiments. We have developed Perl scripts to calculate all possible subset combinations of SSR markers, and determine based on unique patterns or alleles, which combinations can discriminate among all DNA …

Response Of Adult Mosquitoes To Light-Emitting Diodes Placed In Resting Boxes And In The Field, Michael T. Bentley, Phillip E. Kaufman, Daniel L. Kline, Jerome A. Hogsette

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

The response of adult mosquitoes to 4 light-emitting diode (LED) wavelengths was evaluated using diode-equipped sticky cards (DESCs) and diode-equipped resting boxes at 2 sites in north central Florida. Wavelengths evaluated were blue (470 nm), green (502 nm), red (660 nm), and infrared (IR) (860 nm). When trapping with DESCs, 15 mosquito species from 7 genera (Aedes, Anopheles, Coquillettidia, Culex, Mansonia, Psorophora, and Uranotaenia) were captured. Overall, approximately 43.8% of all mosquitoes were trapped on DESCs fitted with green LEDs. Significantly more females of Aedes infirmatus, Aedes vexans, and Culex nigripalpus were captured on DESCs fitted with blue …

Efficiency And Establishment Of Three Introduced Parasitoids Of The Mealybug Paracoccus Marginatus (Hemiptera: Pseudococcidae), Kaushalya G. Amarasekare, Catharine M. Mannion, Nancy D. Epsky

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Three introduced parasitoids Acerophagus papayae, Anagyrus loecki, and Pseudleptomastix mexicana of the mealybug Paracoccus marginatus have been released in Miami-Dade and Broward counties (Florida) in 2003. Efficiency and establishment of these previously introduced parasitoids to control P. marginatus were measured in 2005 and 2006, at three locations in Homestead (Miami-Dade). Mealybug populations were initially established on three branches (per plant) of 10 hibiscus plants inside closed-sleeve cages. The three treatments, closed, open, and no-cage environments were applied to the three established mealybug populations on each plant. The number of mealybugs and natural enemies was monitored in all treatments. …

Host Range Of Tetramesa Romana Walker (Hymenoptera: Eurytomidae), A Potential Biological Control Of Giant Reed, Arundo Donax L. In North America, John A. Goolsby, Patrick Moran

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

The eurytomid wasp, Tetramesa romana Walker was evaluated as a potential biological control agent of the invasive reed grass, Arundo donax in North America. No-choice tests and timed behavioral studies were used to determine the fundamental host range of two genotypes of the wasp collected from Granada, Spain and Perpignan, France. Thirty-five species, including two genotypes of A. donax and seven ecotypes of Phragmites australis, along with closely related grasses, economic grasses and habitat associates were tested. Complete development of both T. romana genotypes was restricted to A. donax and Arundo formosana. The mean number of offspring produced …

Flight Phenology Of Male Cactoblastis Cactorum (Lepidoptera: Pyralidae) At Different Latitudes In The Southeastern United States, Stephen D. Hight, James E. Carpenter

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Long term trapping studies of the invasive moth Cactoblastis cactorum (Berg) were conducted at various latitudes from Puerto Rico to South Carolina. Three flight periods per year were identified at the 5 temperate sites studied, which covered the majority of the infested range on mainland United States. In general, the 3 flight periods across a latitudinal gradient from south Florida to central, coastal South Carolina were a spring flight during Feb-May, a summer flight during Jun-Aug, and a fall flight during Sep-Nov. At any 1 site, each flight period lasted about 2 months. In the tropical areas of the Florida …

Field Assessment Of Host Plant Specificity And Potential Effectiveness Of A Prospective Biological Control Agent, Aceria Salsolae, Of Russian Thistle, Salsola Tragus, Lincoln Smith, Massimo Cristofaro, Enrico De Lillo, Rosita Monfreda, Alessandra Paolini

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

The eriophyid mite, Aceria salsolae de Lillo and Sobhian, is being evaluated as a prospective classical biological control agent of invasive alien tumbleweeds, including Salsola tragus, S. collina, S. paulsenii and S. australis, in North America. Previous laboratory experiments to determine the host specificity of the mite indicated that it could sometimes persist and multiply on some nontarget plants, including Bassia hyssopifolia and B. scoparia. These are both European plants whose geographic range overlaps that of the mite, but the mite has never been observed on them in the field. A field experiment was conducted in …

Differential Induction Of Redox Sensitive Extracellular Phenolic Amides In Potato, C. Jacyn Baker, Bruce D. Whitaker, Norton M. Mock, Clifford P. Rice, Daniel P. Roberts, Kenneth L. Deahl, Peter P. Ueng, Andrey A. Aver’Yanov

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

This study focuses on the differential induction of extracellular phenolic amides that accumulate in potato cell suspensions during the first few hours of the interaction between these plant cells and either bacterial pathogens or pathogen-related elicitors. Using suspension cells of Solanum tuberosum we identified 4 hydroxycinnamic acid amides that accumulate in the extracellular environment. Treatment of the suspension cells with pathovars of the plant pathogens Pseudomonas syringae or Ralstonia solanacearum or with pathogen-related elicitors changed the composition of the extracellular phenolic amides within hours and the composition differed for each treatment. Some of the phenolic amides were sensitive to oxidative …

Where To Sample? Ecological Implications Of Sampling Strata In Determining Abundance And Impact Of Natural Enemies Of The Coffee Berry Borer, Hypothenemus Hampei, Juliana Jaramillo, Adenirin Chabi-Olaye, Christian Borgemeister, Charles Kamonjo, Hans-Michael Poehling, Fernando E. Vega

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Several parasitoids of African origin have been introduced to coffee producing areas of the Americas and Asia as biological control agents of the coffee berry borer (CBB) Hypothenemus hampei (Coleoptera: Curculionidae). These parasitoids have become established in the field but their effect on the CBB has been limited. A two-year field study in Western Kenya has found Prorops nasuta (Hymenoptera: Bethylidae) to be the predominant parasitoid emerging from CBB-infested coffee berries collected on coffee trees or from the ground. P. nasuta comprises more than 75% of the total natural enemies collected. The density of P. nasuta was 90% higher in …

Root Responses Along A Subambient To Elevated Co2 Gradient In A C3–C4 Grassland, Laurel J. Anderson, Justin D. Derners, H. Wayne Polley, Wendy S. Gordon, David M. Eissenstat, Robert B. Jackson

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Atmospheric CO₂ (C_a) concentration has increased significantly during the last 20 000 years, and is projected to double this century. Despite the importance of belowground processes in the global carbon cycle, community-level and single species root responses to rising C_a are not well understood. We measured net community root biomass over 3 years using ingrowth cores in a natural C₃–C₄ grassland exposed to a gradient of C_a from preglacial to future levels (230–550 µmol mol^-1).

Nitrogen And Phosphorus Accumulation In Pasture Soil From Repeated Poultry Litter Application, Zhongqi He, C. Wayne Honeycutt, Irenus A. Tazisong, Zachary N. Senwo, Donglin Zhang

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Poultry litter (PL) is a traditionally inexpensive and effective fertilizer to improve soil quality and agricultural productivity. However, over application to soil has raised concern because excess nutrients in runoff could accelerate the eutrophication of fresh water. In this work, we determined the contents of total phosphorus (P), Mehlich 3 extracted P, total nitrogen (N), ammonium (NH4)-N, and nitrate (NO₃)-N, in pasture soils receiving annual poultry litter applications of 0, 2.27, 2.27, 3.63, and 1.36 Mg/ha/ yr, respectively, for 0, 5, 10, 15, and 20 years. Samples were collected from three soil depths (0–20, 20–40, and 40–60 cm) …

Corrected Species Identification Of The Predator Orius Pumilio (Heteroptera: Anthocoridae) In A Research Colony, Jeffrey P. Shapiro, Stephen M. Ferkovich

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Our laboratories have reported on the predatory minute pirate bugs (Family Anthocoridae) in a research colony that was obtained in Dec 2002. The species was originally thought to be Orius insidiosus (Say) (Ferkovich & Shapiro 2004a, 2004b, 2007; Ferkovich & Shapiro 2005a, 2005b, 2005c; Ferkovich et al. 2007). However, specimens from the colony were identified as O. pumilio (Champion) by T. Lewis (USDA, ARS, Wapato, WA) in Apr 2008, not O. insidiosus as previously reported in the publications listed above.

A High-Oleic-Acid And Low-Palmitic-Acid Soybean: Agronomic Performance And Evaluation As A Feedstock For Biodiesel, George L. Graef, Bradley J. Lavallee, Patrick Tenopir, Mustafa Tat, Bruce Schweiger, Anthony J. Kinney, Jon H. Van Gerpen, Thomas E. Clemente

Department of Agronomy and Horticulture: Faculty Publications

Phenotypic characterization of soybean event 335-13, which possesses oil with an increased oleic acid content (> 85%) and reduced palmitic acid content (< 5%), was conducted across multiple environments during 2004 and 2005. Under these conditions, the stability of the novel fatty acid profile of the oil was not influenced by environment. Importantly, the novel soybean event 335-13 was not compromised in yield in both irrigated and non-irrigated production schemes. Moreover, seed characteristics, including total oil and protein, as well as amino acid profile, were not altered as a result of the large shift in the fatty acid profile. The novel oil trait was inherited in a simple Mendelian fashion. The event 335-13 was also evaluated as a feedstock for biodiesel. Extruded oil from event 335-13 produced a biodiesel with improved cold flow and enhanced oxidative stability, two critical fuel parameters that can limit the utility of this renewable transportation fuel.

Apoyo Del Intsormil Incrementa La Produccion Y Productividad Del Cultivo De Sorgo En America Central, Intsormil

INTSORMIL Impacts and Bulletins

El INSORMIL ha apoyado, las actividades de investigación y transferencia de tecnología de sorgo desde 1981, con énfasis en Nicaragua y El Salvador pero en los ultimos años se viene expandiendo a otros países de America Central. Estadísticas del Ministerio de Agricultura y Ganadería de El Salvador, indican un signifi cativo incremento en la producción nacional de grano de sorgo en la misma superfi cie sembrada desde hace 9 años, debido principalmente al incremento en el rendimiento por unidad de superfi cie, tal como se presenta en el gráfi co. En este gráfi co puede verse que desde 1999 al …

Intsormil Support Contributes To Increased Sorghum Yields In Central America, Intsormil

INTSORMIL Impacts and Bulletins

INTSORMIL has supported sorghum research and technology transfer activities in Central America since 1981. Emphasis has been on El Salvador and Nicaragua but now the program is expanding to other Central American countries. Statistics provided by the Ministry of Agriculture indicate a significant advance in sorghum production in El Salvador. As shown in the graph below surface area in ha sown to sorghum during the period 1999-2009 did not increase (about 105,000 ha). However, during that same period grain production increased from 140,000 MT to 186,000 MT, an increase of 33%. This is due to the dramatic yield increase per …

Altos Costos Del Trigo: El Caso De La Harina De Sorgo En La Industria De La Panifi Cacion De El Salvador, Intsormil

INTSORMIL Impacts and Bulletins

El programa de tecnología de alimentos del CENTA, con el apoyo del INTSORMIL ha estado desarrollando recetas de pan a base de harina de sorgo y probándolas en pequeñas y medianas panaderías de El Salvador por muchos años. Ahora con los precios de harina de trigo a $0.57 por libra, los panaderos de El Salvador han demostrado un creciente interés en el uso del sorgo a un costo de $0.32 por libra como un sustituto parcial de la harina de trigo en sus productos. Los tecnólogos de alimentos del CENTA han estado promoviendo el uso y consumo de harina de …

Epithelial And Mesenchymal Cells In The Bovine Colonic Mucosa Differ In Their Responsiveness To Escherichia Coli Shiga Toxin 1, Ivonne Stamm, Melanie Mohr, Philip S. Bridger, Elmar Schröpfer, Matthias König, William C. Stoffregen, Evelyn A. Dean-Nystrom, Georg Baljer, Christian Menge

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Bovine colonic crypt cells express CD77 molecules that potentially act as receptors for Shiga toxins (Stx). The implication of this finding for the intestinal colonization of cattle by human pathogenic Stx-producing Escherichia coli (STEC) remains undefined. We used flow cytometric and real-time PCR analyses of primary cultures of colonic crypt cells to evaluate cell viability, CD77 expression, and gene transcription in the presence and absence of purified Stx1. A subset of cultured epithelial cells had Stx receptors which were located mainly intracellularly, with a perinuclear distribution, and were resistant to Stx1-induced apoptosis and Stx1 effects on chemokine expression patterns. In …

Usaid/Mali Awards $5 M Associate Cooperative Agreement To Intsormil For Food Insecurity Mitigation In Mali, West Africa, Kimberly Christiansen

INTSORMIL Impacts and Bulletins

Dr. John Yohe, Program Director of the “Sorghum, Millet and other Grains Collaborative Research Support Program” (INTSORMIL) announces receipt from the USAID Mission in Mali, West Africa, of a $5 million grant to expand the activities of the current project “Transfer of Sorghum, Millet Production, Processing and Marketing Technologies in Mali.” Subsistence and resource poor farmers in West Africa are dependent on sorghum and millet as they serve as basic human foods and livestock feed. There continues to be a shortage of sorghum and millet grain in Mali, especially in the north. Mali’s ‘Hungry Season’ has been described as “that …

University Of Nebraska Selected To Manage The New Sorghum/Millet And Other Grains Crsp, John Yohe, Kimberly Christiansen

INTSORMIL Impacts and Bulletins

Dr. John Yohe, INTSORMIL CRSP Program Director, has announced that the University of Nebraska (UNL) has been selected as the Management Entity for the new Sorghum/Millet and Other Grains CRSP. The award was based on national competition among U. S. universities. This CRSP is funded through a Leader with Associates Cooperative Agreement instrument as opposed to a grant under which INTSORMIL was funded since 1979. The INTSORMIL CRSP, Managed by UNL in partnership with Kansas State University, Purdue University, Texas A&M University, UNL and West Texas A&M University, ends June 30, 2007. The Leader with Associates Cooperative Agreement is effective …

Convergence Of Agriculture And Energy: Iii. Considerations In Biodiesel Production, Jon Van Gerpen, Allan Gray, Brent H. Shanks, Beth Calabotta, Drew Kershen, Alan Weber, Richard Joost, Todd A. Peterson

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Concern about rising prices and unstable sources of petroleum fuels is driving the search for U.S. domestically produced, renewable transportation fuels, such as biodiesel. Federal incentives of up to $1.10 per gallon have been supplemented by additional incentives and mandated biodiesel use in many states. The Renewable Fuel Standard in the Energy Independence and Security Act of 2007 requires the domestic use of 1 billion gallons of biomass-based diesel fuel by 2012, most of which likely will be biodiesel.
U.S. biodiesel production is primarily from soybean oil, but recent high prices have forced many producers to use lower-cost feedstocks such …

Early Attachment Sites For Shiga-Toxigenic Escherichia Coli O157:H7 In Experimentally Inoculated Weaned Calves, Evelyn A. Dean-Nystrom, William C. Stoffregen, Brad T. Bosworth, Harley W. Moon, Joachim F. Pohlenz

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Weaned 3- to 4-month-old calves were fasted for 48 h, inoculated with 10¹⁰ CFU of Shiga toxin-positive Escherichia coli (STEC) 0157:H7 strain 86-24 (STEC 0157) or STEC 091:H21 strain B2F1 (STEC 091), Shiga toxin-negative E. coli 0157:H7 strain 87-23 (Stx^- 0157), or a nonpathogenic control E. coli strain, necropsied 4 days postinoculation, and examined bacteriologically and histologically. Some calves were treated with dexamethasone (DEX) for 5 days (3 days before, on the day of, and 1 day after inoculation). STEC 0157 bacteria were recovered from feces, intestines, or gall bladders of 74% (40/55) of calves 4 days after …

Protecting Sorghum Grain From Pests In Africa, Intsormil

INTSORMIL Impacts and Bulletins

Insect pests destroy more than 35% of stored grain worldwide and probably even more in Africa. Considering the current global food shortage this is a tremendous loss. To mitigate losses caused by insects in stored sorghum grain, INTSORMIL scientist Bonnie Pendleton of West Texas A&M University is collaborating with African entomologists to develop management strategies. Storage conditions are critical in preventing losses due to pests. A survey in Mali by IER scientist Niamoye Yaro Diarisso found that farmers in the Koulikoro and Ségou regions thresh sorghum and millet and store it in the form of grain. However, in the Sikasso …