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Pb1768 2010 Insect Control Recommendations For Field Crops –, The University Of Tennessee Agricultural Extension Service

Field & Commercial Crops

An Integrated Pest Management (IPM) program integrates control tactics including cultural practices, variety selection, biological control and insecticides to manage insect pest populations so that economic damage and harmful environmental side effects are minimized. Insecticides should only be used on an as-needed basis; therefore, insect scouting must be conducted regularly throughout the season to determine if an insecticide application is warranted.

Bed Bugs: For Pest Control Operators, Ryan S. Davis

All Current Publications

Over the past decade reports of bed bug infestations (Cimicidae: Cimex lectularius) throughout North America and abroad have been on the rise. Accordingly, bed bug submissions to the Utah Plant Pest Diagnostic Lab have also been increasing.

The Chemistry Of Lipid Signal Molecules In Insects, Sean M. Putnam

Department of Entomology: Dissertations, Theses, and Student Research

I report on the chemical identification of lipid signaling molecules in three species of insects and describe the chemical isolation of a bacterial product that inhibits eicosanoid biosynthesis. Chapter 2 reports that eicosanoids mediate nodulation reactions to bacterial infection in newly-emerged, but not forager honeybees. Cyclooxygenase and lipoxygenase inhibitors attenuate nodulation, which is reversed in the presence of arachidonic acid. Older adult honeybees do not produce bacterial-induced nodules, and they have fewer circulating hemocytes, from which I infer that foraging honeybees express a physiological trade-off between maintaining a biologically expensive hemocytic immune system and flight activity associated with foraging. Chapters …

Pb1395-Insects In Farm-Stored Grain: 2009 Prevention And Control, The University Of Tennessee Agricultural Extension Service

Field & Commercial Crops

Insects damage stored grain in two ways:

1. Direct feeding damage, resulting in loss of weight, loss of nutrients, reduction in germination, reduction in grade and a lowering of market value.

2. Deterioration and contamination by their presence, resulting in downgrading of grain and lowering of market value because of foreign matter in grain (insects and insect parts), odors, molds and heat-damaged grain.

Sp290-E-Azalea Lace Bug, The University Of Tennessee Agricultural Extension Service

Home Garden, Lawn, and Landscape

Since its introduction from Japan in the early 1900s, the azalea lace bug has become a destructive pest of azaleas. Although this bug prefers evergreen azalea varieties, it will infest deciduous varieties. Mountain laurel can also become infested.

W207-Vegetable Pests - Melon Aphid, The University Of Tennessee Agricultural Extension Service

Home Garden, Lawn, and Landscape

The melon aphid, Aphis gossypii Glover, is found throughout most of the temperate, subtropic and tropic regions of the world. Although it is a cosmopolitan species, its origin is unknown. The melon aphid has a wide host range and can feed on watermelon, cucumber, cantaloupe, squash, pumpkin, asparagus, spinach, bean, beet, cowpea, tomato, pepper, eggplant, okra, citrus, cotton, hibiscus and many weeds (such as jimsonweed and pigweed). In the South, cotton is an important host, which explains the use of the second common name, “cotton aphid.”

W208-Vegetable Pests - Colorado Potato Beetle, The University Of Tennessee Agricultural Extension Service

Home Garden, Lawn, and Landscape

The Colorado potato beetle, Leptinotarsa decemlineata (Say), is found throughout most of the United States and Mexico and has been introduced into Europe and parts of Asia. Mexico is considered the center of origin for this pest. The Colorado potato beetle is an important pest of Solanaceous plants. Potato is the preferred host, but this insect pest also will feed on tomato, eggplant, pepper, tobacco, ground cherry, horse-nettle, nightshade, belladonna, thorn apple, henbane, buffalobur and other related plant species.

W206-Vegetable Pests - Pickleworm, The University Of Tennessee Agricultural Extension Service

Home Garden, Lawn, and Landscape

The pickleworm, Diaphania nitidalis (Stoll) (Family Crambidae, previously Pyralidae), is found from Canada into parts of South America, and as far west as Oklahoma and Nebraska. It is an important pest of numerous cucurbits. Summer squash is the preferred host, but it also feeds on cantaloupe, cucumber, pumpkin and winter squash. Late-planted cantaloupes are heavily attacked in some areas.

A Remarkable Tiphiiform Wasp In Mid-Cretaceous Amber From Myanmar (Hymenoptera: Tiphiidae), Michael S. Engel, Jaime Ortega-Blanco, Daniel J. Bennett

Faculty Publications

The first tiphiid wasp (Aculeata: Euaculeata: Vespoidea: Tiphiiformes) in Cretaceous amber is described and figured. Thanatotiphia nyx, new genus and species, is represented by a male entombed in mid-Cretaceous (latest Albian) amber from Myanmar. Thanatotiphia possesses remarkable apomorphies in wing venation, lacks key traits of modern subfamilies, and is thus classified in a new subfamily, Thanatotiphiinae. The fossil is further shown to be nested well within the family, indicating that major lineages of Tiphiidae diverged by the mid-Cretaceous. The new taxon is compared with modern tiphiid subfamilies and the sparse fossil history of the family briefly overviewed.

Ec09-1579 Beneficial Insects Ii, Robert J. Wright, Terry A. Devries, Jim A. Kalisch

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 09-1579 discusses beneficial insects II.

Ec09-1577 Alfalfa Insects Ii, Robert J. Wright, Terry A. Devries, Jim Kalisch

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 09-1577 discusses Alfalfa Insects II.

Floral Thermogenesis Of Three Species Of Hydnora (Hydnoraceae) In Africa, Roger S. Seymour, Erika Maass, Jay F. Bolin

Biological Sciences Faculty Publications

Background and Aims: Floral thermogenesis occurs in at least 12 families of ancient seed plants. Some species show very high rates of respiration through the alternative pathway, and some are thermoregulatory, with increasing respiration at decreasing ambient temperature. This study assesses the intensity and regulation of respiration in three species of African Hydnora that represent the Hydnoraceae, an unusual family of holoparasitic plants from arid environments.

Methods: Long-term respirometry (CO₂ production) and thermometry were carried out on intact flowers of H. africana, H. abyssinica and H. esculenta in the field, and short-term measurements were made on floral parts …

Ec09-1578 Beneficial Insects I, Robert J. Wright, Terry A. Devries, Jim A. Kalisch

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 09-1578 discusses beneficial insects I

Ec09-1576 Alfalfa Insects I, Robert J. Wright, Terry A. Devries, Jim Kalisch

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 09-1576 discusses Alfalfa Insects I.

Evaluating The Effectiveness Of Grassbed Treatments As Habitat For Juvenile Black Bass In A Drawdown Reservoir, D. R. Ratcliff, Wayne A. Wurtsbaugh, J. Zustak

Watershed Sciences Faculty Publications

Many reservoirs in arid regions experience highly variable water levels caused by seasonal inflow fluctuations and designated outflow requirements. At Shasta Lake, California, managers plant cereal-grain grassbeds on exposed drawdown shorelines to increase juvenile fish habitat, localize productivity, and increase invertebrate fish prey. To determine the efficacy of these plantings, the abundance of juvenile black basses Micropterus spp. (20–55 mm standard length) and the amount of periphyton and macroinvertebrate prey were compared among three treatment types: (1) planted grassbeds of cereal barley Hordeum vulgare; (2) artificial rope grassbeds, which eliminated physical deterioration and nutrient release; and (3) nonplanted control sites …