EVALUATION OF SELECTED SOYBEAN CULTIVARS FOR ANTIBIOSIS RESISTANCE TO THREE INSECT PESTS, 1999

Efficient Evaluation of Resistance to Three Root-knot Nematode Species in Selected Sweetpotato Cultivars

Five sweetpotato [Ipomoea batatas (L.) Lam.] cultivars (‘Beauregard’, ‘Excel’, ‘Jewel’, ‘Hernandez’, and ‘Porto Rico’) were evaluated for resistance to three root-knot nematode species: Meloidogyne arenaria (Neal) Chitwood (race 2), M. incognita (Kofoid & White) Chitwood (race 3), and M. javanica (Treub) Chitwood. Resistance screening efficiency was assessed in both 400-cm3 square pots and 150-...

Genetic engineering of rice for resistance to homopteran insect pests

The rice brown planthopper (BPH; Nilaparvata lugens) is a serious pest of rice crops throughout Asia, damaging plants both through its feeding behavior and by acting as a virus vector. Like many homopteran pests of crops, it is primarily a phloem feeder, abstracting sap via specially adapted mouthparts. An artificial diet bioassay system for this pest was developed to allow the effects of poten...

Quantitative Trait Loci for Antibiosis Resistance to Corn Earworm in Soybean

bean pests including the soybean looper (Pseudoplusia includens Walker) (All et al., 1989). In more than 25 yr since the discovery of soybean [Glycine max There are several reasons for the difficulty experi(L.) Merr.] resistance to defoliating insects, attempts to introgress enced in breeding for PRI in soybean. Resistant germthis trait into elite germplasm have been relatively unsuccessful. Re...

Evaluation of six cotton cultivars for their resistance to thrips and leafhoppers

Alternatives to Chemical Control of Insect Pests

In 2011, practitioners and advocates of Integrated Pest Management (IPM) find themselves addressing agricultural, societal, and political pressures worldwide resulting from human population growth. This growth brings simultaneous burdens of sustaining a steady food supply; these include preventing losses from pests, dealing with increased human global travel, which in turn intensifies opportuni...