Entomology Commons^™

Observations Of The Mating Habits And Attack Pattern Of Trypodendron Retusum (Coleoptera: Curculionidae: Scolytinae) On Populus Grandidentata In Central Michigan, Richard Roeper, Daniel Dickerson, Paul Kurtzhals, Mark Bunce, Steven Brewer

The Great Lakes Entomologist

Trypodendron retusum Leconte attack pattern on Populus grandidentata Michx. (Big Tooth Aspen) was studied. Mating habits of males and females involved copulation at the entrance hole bored by the female. Attack (entrance )holes averaged 15.9 cm. apart and were found to be uniformly spaced on the bark surface. Attack density was greater on standing trees than wind-thrown trees. On standing trees attack density appeared to be a function of the height rather than the diameter of the tree.

Examining Resistance Of Asian, European, And North American Ash And Elm Species To The Emerald Ash Borer (Agrilus Planipennis) (Coleoptera: Buprestidae), Fredric Miller, Erin Mcmahan

The Great Lakes Entomologist

The emerald ash borer (EAB) (Agrilus planipennis Fairmaire) (Coleoptera: Buprestidae), native to East Asia and discovered in Michigan in 2002, has been a devastating pest of North American ash trees (Fraxinus spp.). Along with native ecosystems in Eastern North America, a large percentage of urban canopies in many North American cities consist of ash trees, and many of these areas have lost or risk losing these valuable trees. As part of a multi-faceted management strategy, it is important to develop and plant cultivars of ash with resistance to this damaging insect. Given that EAB is not considered a …

Documenting Bombus Nevadensis In Minnesota, With Some Notes On Discerning It From B. Auricomus (Hymenoptera: Apidae), Zachary M. Portman, Chan Dolan

The Great Lakes Entomologist

In the face of well-documented declines in multiple bumblebee species, it is important to accurately identify species and properly delineate species ranges. Here, we document the range of Bombus auricomus (Robertson) and B. nevadensis Cresson in Minnesota, with particular reference to the unexpected discovery of B. nevadensis in St. Paul. We clarify the relative ranges of these two species and provide additional information on how to reliably identify them in Minnesota using color patterns and morphology, including differences in male genitalia. Our results support the consensus that B. auricomus and B. nevadensis are distinct species. Community science records were integral …

Western Bean Cutworm (Lepidoptera: Noctuidae) Feeding And Development On Industrial Hemp In The Laboratory And Field, Christina D. Difonzo

The Great Lakes Entomologist

The western bean cutworm (Striacosta albicosta (Smith)) is a key pest of corn (Zea mays L.) and dry beans (Phaseolus vulgaris L.). This observational study demonstrates that in addition to these hosts, western bean cutworm readily feeds on industrial hemp (Cannabis sativa L.) and completes development on it under controlled laboratory conditions. In the laboratory, individual larvae were reared on a diet exclusively of hemp inflorescences; 57% survived to form prepupae and 15% emerged as moths. In the field, first instars were caged on hemp plants to investigate larval development in situ. After seven days, 82% …

Cover Art For Tgle Vol. 55 Nos. 1 & 2

The Great Lakes Entomologist

Cover Art for TGLE Vol. 55 Nos. 1 & 2

Cover Pages For Tgle Vol. 55 Nos. 1 & 2

The Great Lakes Entomologist

Cover Pages for TGLE Vol. 55 Nos. 1 & 2

Full Issue For Tgle Vol. 55 Nos. 1 & 2

The Great Lakes Entomologist

Full issue for TGLE Vol. 55 Nos. 1 & 2

The Applied Use Of Zein Nanoparticles In Agriculture, Colin Bonser

LSU Doctoral Dissertations

Nanotechnology is a multifaceted and a promising strategy in agricultural pest management for the development of insecticides or insecticide carriers. Research has shown that nanoparticles increase stability and efficacy of entrapped chemical pesticides to prevent active ingredient degradation while improving chemical stability and solubility. The following work evaluated nanoparticles synthesized from biopolymers, materials that originate from renewable sources also have an increased biodegradability.
Work was conducted under laboratory, greenhouse, and field conditions to test the biopoloymers as possible insecticide and insecticide carriers. The primary biopolymer evaluated in the following studies was zein, although lignin and chitosan were also evaluated. Overall, …

Uses And Benefits Of Algae As A Nutritional Supplement For Honey Bees, Benjamin J. Nichols, Vincent A. Ricigliano

Department of Entomology: Faculty Publications

Honey bees are essential agricultural pollinators that are threatened by various interacting stressors, posing risks to beekeeping industries and human food security. Malnutrition is a major factor underlying managed bee colony losses that can be countered by feeding artificial diets, which aim to deliver essential macro- and micronutrients. Current bee nutritional supplements show room for improvement and require resources that compete with human food production. Algae and microalgae in particular have been gaining traction in the literature as alternative feed sources and nutritional supplements for livestock, including honey bees. Herein, we review the current literature and categorize the effects of …

Exceptional Larval Morphology Of Nine Species Of The Anastrepha Mucronota Species Group (Diptera: Tephritidae), Erick J. Rodriguez, Gary J. Steck, Matthew R. Moore, Allen L. Norrbom, Jessica Diaz, Louis A. Somma, Raul Ruiz-Arce, Bruce D. Sutton, Norma Nolazco, Alies Muller, Marc A. Branham

Papers in Evolution

Anastrepha is the most diverse and economically important genus of Tephritidae in the American tropics and subtropics. The striking morphology of the third instars of Anastrepha caballeroi Norrbom, Anastrepha crebra Stone, Anastrepha haplacantha Norrbom & Korytkowski, Anastrepha korytkowskii Norrbom, Anastrepha nolazcoae Norrbom & Korytkowski, and three newly discovered and as yet formally unnamed species (Anastrepha sp. Peru-82, Anastrepha sp. nr. protuberans, and Anastrepha sp. Sur-16), and the more typical morphology of Anastrepha aphelocentema Stone, are described using light and scanning electron microscopy. To contribute to a better understanding of the interspecific and intraspecific variation among species in the mucronota …

Esterase Mediated Insecticide Resistance In The Southern House Mosquito, Culex Quinquefasciatus, Vivek Pokhrel

LSU Doctoral Dissertations

Much is known about the development of insecticide resistance associated with targeted application against insect populations. However, off-target selection by applications of insecticides in agricultural and residential sites also impacts development of insecticide resistance and is understudied. Similarly, the impact of selecting one life stage of mosquitoes on the insecticide susceptibility of different life stages is largely unknown. The first part of this study shows that susceptibility to chlorantraniliprole, which is applied in rice and sugarcane fields in LA, decreased (5.7 to12-fold) in populations of Culex quinquefasciatus collected from near these fields compared to a reference field strain. In addition, …

Review Of Structural Color In The Genus Chrysochroa Dejean, 1833 (Coleoptera: Buprestidae), Able Chow

LSU Master's Theses

The jewel beetles, (Coleoptera: Buprestidae Leach, 1815), is the eighth most speciose coleopteran family, with the majority of its members possessing diverse bright, saturated structural coloration of multilayer origin. This study focuses on the genus Chrysochroa Dejean, 1833, which includes some of the most brilliantly and charismatically colored buprestid species. While members of Chrysochroa are prised by entomologists amateurs and professional and are well-represented in museum collections, the evolution and ecology of their structural color remain underexplored. Twenty-eight select taxa including exemplars from all 13 subgenera of Chrysochroa were investigated to provide an overview of the objective optical properties and …

Pestfacts Wa Issue 21 - November 2022, Cindy L. Webster, Ciara Beard, Geoff J. Thomas

PestFacts WA

PestFacts WA Issue 21 - November 2022 contents:

• Final PestFacts WA newsletter for 2022!
• Green bridge management over summer
• PestFacts WA continues successful collaboration with Agworld and Back Paddock

Nebline, November/December 2022

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Holiday Wellness Tips by Alyssa Havlovic

Holiday Food Safety Quiz by Alyssa Havlovic

Recipe of the Month: Acorn Squash Cranberry Kale Salad by Alyssa Havlovic

Winter Protection for Potted Trees and Shrubs by Sarah Browning

Garden Guide: Things to Do This Month

What's the Deal With Smelly Well Water? by Becky Schuerman

Cover Crop Grazing Conference, Nov. 1

Pantry Pests by Kait Chapman

Bedtime Blues for Young Children by Hayley Jackson

Heart of 4-H Volunteer Award: Beatrice 77 Livestock and Lon and Carol Bohling

State 4-H Archery Outdoor Results

20 Years of Heart of 4-H Award!

4-H Announcements for Enrolled …

Tephritid Fruit Fly Species Composition, Seasonality, And Fruit Infestations In Two Central African Agro-Ecological Zones, Samuel Nanga Nanga, Rachid Hanna, Apollin Fotso Kuate, Komi K.M. Fiaboe, Ibrahim Nchoutnji, Michel Ndjab, Désiré Gnanvossou, Samira A. Mohamed, Sunday Ekesi, Champlain Djieto-Lordon

All Peer-Reviewed Publications

Bactrocera dorsalis and several Africa-native Ceratitis species are serious constraints to fruit production in sub-Saharan Africa. A long-term trapping and fruit collection study was conducted (2011–2016) in two contrasting agro-ecological zones (AEZs) of Cameroon to determine fruit fly species composition, seasonality, attraction to various lures and baits, and fruit infestation levels. Ten tephritid species from genera Bactrocera, Ceratitis, Dacus, and Perilampsis were captured in traps. Bactrocera dorsalis was the most dominant of the trapped species and persisted throughout the year, with peak populations in May–June. Ceratitis spp. were less abundant than B. dorsalis, with Ceratitis anonae dominating in the western …

Pestfacts Wa Issue 20 - November 2022, Ciara Beard, Geoff J. Thomas, Dustin Severtson

PestFacts WA

PestFacts WA Issue 20 - November 2022 contents:

• Phomopsis can be a risk when grazing lupin stubble
• Meet PestFacts WA team member – Dusty Severtson

Acute Toxicity Of Atrazine, Alachlor, And Chlorpyrifos Mixtures To Honey Bees, Christopher J. Fellows, Troy D. Anderson, Daniel R. Swale

Department of Entomology: Faculty Publications

The acute toxicity of chlorpyrifos and chlorpyrifos-oxon (organophosphorothioate insecticides) was examined alone and in combination with atrazine (triazine herbicide) and alachlor (chloroacetanilide herbicide) to honey bees (Apis mellifera). Atrazine and alachlor were observed to not be acutely toxic to bees at doses up to 10 and 4 μg per bee, respectively. However, atrazine significantly increased chlorpyrifos toxicity by 3-fold while reducing chlorpyrifos-oxon toxicity by 1.8-fold. These changes in toxicity are correlated with significant 1.3- and 1.2-fold inhibition of acetylcholinesterase (AChE) activity in bees exposed to chlorpyrifos and chlorpyrifos-oxon, respectively. Atrazine significantly increased cytochrome P450, general esterase, and glutathione …

Influence Of Si In Maize Plants In Kenyan Populations Of Spodoptera Frugiperda (Lepidoptera: Noctuidae), Ovide Nuambote-Yobila, Boaz Musyoka, Elijah Njuguna, Anani Yaovi Bruce, Fathia Khamis, Sevgan Subramanian, Frédéric Marion-Poll, Paul André Calatayud

All Peer-Reviewed Publications

The fall armyworm (FAW), Spodoptera frugiperda (Lepidoptera: Noctuidae), native to the Americas, was confirmed in West and Central Africa in 2016 and reported in almost all countries of sub-Saharan Africa in 2017, becoming thereafter one of the major constraints on the production of maize, the main staple food crop in the region. Cereals depend on silicon (Si)-based defences to fight off herbivores. Both FAW strains, namely rice and corn strains, have been found to be present in Kenya. The present study tested the influence of Si on larval survival and relative growth rate according to the FAW strain, using potted …

Neotype Designation For Papilio Fulgerator Walch, 1775 (Hesperiidae: Eudaminae), Jing Zhang, Qian Cong, Gerardo Lamas, Nick V. Grishin

The Taxonomic Report of the International Lepidoptera Survey

The discovery that a skipper butterfly Telegonus fulgerator (Walch, 1775), previously placed in the genus Astraptes Hübner, [1819], is a complex of many similar-looking species-level taxa with different COI barcodes, caterpillar foodplants, and body patterns, and subtle differences in adult phenotypes raised a question about which species is the original T. fulgerator. To answer this question, being unable to locate its holotype, we designate the neotype of Papilio fulgerator Walch, 1775, a female specimen from Suriname in the Zoological State Collection, Munich, Germany. This neotype will form the foundation for a comprehensive revision of the T. fulgerator complex based …

First Host Record, Nesting Behavior, And Taxonomic Position Of The Spider Wasp Genus Hesperopompilus Evans And Some Other Evans Genera (Hymenoptera: Pompilidae), Frank E. Kurczewski, Rick C. West, James P. Pitts

Insecta Mundi

First host record, prey transport, and burrow excavation are described for Hesperopompilus sp., an undescribed, rare spider wasp (Hymenoptera: Pompilidae) from Texas. Taxonomic, ecological, and behav­ioral examination of the genus subsequently led to an investigation of the previously related Perissopompilus Evans and Xerochares Evans. Taxonomic, host preference, nesting behavior, and phylogenomic relationships of the three taxa are discussed along with those of Xenopompilus Evans. The molecular connection of Perisso­pompilus and Allochares Banks is supported by their common use of host species of Filistatidae.

Evans (1951), in his taxonomic study of the spider wasp tribe Pompilini (Hymenoptera: Pompilidae: Pompilinae), described the …