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Biorational approaches to managing stored-product insects.
Some of the most promising biorational management tools for farm-stored grain are temperature management and use of natural enemies, and new tools for computer-assisted decision-making and insect sampling at grain elevators appear most promising. Expand
Probit Analysis of Correlated Data: Multiple Observations Over Time at One Concentration
We present a method to analyze serial time–mortality data from bioassay experiments where successive observations are made on the same group of organisms exposed to 1 concentration of a stimulus (forExpand
Life history of immature maize weevils (Coleoptera: Curculionidae) on corn stored at constant temperatures and relative humidities in the laboratory.
Life history of immature maize weevils, Sitophilus zeamais Motschulsky, and an index of environmental suitability indicated that 30°C and 75% RH was the optimal environment for growth of maize weevil populations on corn. Expand
Time-Mortality Relationships for Tribolium castaneum (Coleoptera: Tenebrionidae) Life Stages Exposed to Elevated Temperatures
This work determined time-mortality relationships for eggs, young (neonate) larvae, old larvae, pupae, and adults of T. castaneum, an important pest of food-processing facilities worldwide, to elevated temperatures used during heat treatments and found young larvae were the most heat-tolerant stage. Expand
Time-mortality relationships for Tribolium castaneum (Coleoptera: Tenebrionidae) life stages exposed to elevated temperatures.
The use of elevated temperatures or heat treatments for managing insects in food-processing facilities is a viable alternative to space fumigation with methyl bromide and young larvae should be used as test insects to evaluate efficacy against T. castaneum. Expand
Transgenic avidin maize is resistant to storage insect pests
It is shown that when present in maize at levels of ≥100 p.p.m., avidin is toxic to and prevents development of insects that damage grains during storage, suggesting that avidin expression in food or feed grain crops can be used as a biopesticide against a spectrum of stored-produce insect pests. Expand
Biology and management of Plodia interpunctella (Lepidoptera: Pyralidae) in stored products.
The use of reduced-risk insecticides, non-chemical control, targeted pest management through spatial analysis and other means of identifying specific locations of infestations, and computer models that simulate population growth, are examples of some of those new areas of research. Expand
Identifying stored-grain insects using near-infrared spectroscopy.
Evidence indicates that absorption characteristics of cuticular lipids may contribute to the classification of these species, and it is believed that near-infrared spectroscopy could be used for rapid, automated identification of many other organisms. Expand
Oil-Soluble Dyes Incorporated in Meridic Diet of Diatraea grandiosella (Lepidoptera: Crambidae) as Markers for Adult Dispersal Studies
Two oil-soluble dyes, Sudan Red 7B and Sudan Blue 670, can be used to mark southwestern corn borer adults and thus should be useful for mark-release-recapture dispersal studies and will also be Useful for short-term studies with marked larvae and oviposition behavior. Expand
Efficacy of grain protectants against four psocid species on maize, rice and wheat.
BACKGROUND Psocids are emerging pests in stored products, particularly in amylaceous commodities such as grains. Currently, their control is based on the use of fumigants and contact insecticides;Expand