This spring, the Del Mar College sophomore is part of a team using Geographic Information Systems (GIS) technology to measure the populations of pests like the verde plant bug and cotton fleahopper
and produce data that helps farmers maximize their crop yield.
Impact of the striped lynx spider (Araneae: Oxyopidae) and other natural enemies on the cotton fleahopper
(Hemiptera: Miridae) in Texas cotton.
Foraging by selected spider predators on the cotton fleahopper
(Hemiptera, Miridae) and other prey.
The nectariless trait reduces damage from insect pests such as fleahopper
[Pseudatomoscelis seriatus (Reuter)], plant bug (Lygus spp), bollworm [Helicoverpa zea (Boddie)], tobacco budworm [Heliothis virescens (F.)], and pink bollworm [Pectinophera gossypiella (Saunders)] (Meredith, 1976).
In addition, an unidentified species of fleahopper
(Hemiptera: Miridae) causes a speckled bleaching pattern on the leaves.
Adult vial bioassay of insecticidal toxicity against cotton fleahopper
, Pseudatomoscelis seriatus (Hemiptera: Miridae).
Laboratory and greenhouse studies by BIRU scientists, including entomologists Shoil Greenberg and Randy Coleman, have shown that the spiders also prey on other cotton pests, including the cotton fleahopper
, Pseudomatoscelis seriatus, and the cotton plant bug, Creontiades signatus.
GP-790, PI 635878), was developed by the Cotton Improvement Laboratory, Department of Soil and Crop Sciences, Texas Agricultural Experiment Station (TAES) and released in 2004 as part of an ongoing effort to create glabrous germplasm and cultivars with improved yield potential, fiber quality, and resistance to fleahopper
[Pseudatomoscelis seriatus (Reuter)] and silverleaf whitefly [Bemesis argentifolli (Perring and Bellows)].
Tamcot Pyramid has similar levels of resistance to aphids (Aphis gossypii Glover), thrips (Thrips and Frankliniella spp.), fleahopper
[Pseudatomoscelis seriatus (Reuter)], boll weevil (Anthonomus grandis Boheman), tobacco budworm [Heliothis virescens (F.)], bollworm [Helicoverpa zea (Boddie)], and sweetpotato whitefly (Bemesia argentifolii Bellows & Perring), plus pathogens causing seed-seedling diseases (Pythium ultimum Trow and Rhizoctonia solani Kuhn), Verticillium wilt (Verticillium dahliae Kleb.), Fusarium wilt-root-knot nematode complex [F.
Frego bract has been shown to convey resistance to the boll weevil, Anthonomus grandis grandis Boheman, but also conveys greater sensitivity to the fleahopper
, Pseudatomoscelis seriatus (Reuter).
Indole-acetic acid and the ethylene precursor, ACC, in the cotton fleahopper
(Hemiptera: Miridae) and their role in cotton square abscission.
The MAR-6 lines have significantly higher levels of broad-spectrum resistance than the earlier-released MAR germplasm to insects [thrips, Thrips and Frankliniella spp.; cotton fleahopper
, Pseudatomoscelis seriatus (Reuter); boll weevil, Anthonomus grandis Boheman; tobacco budworm, Heliothis virescens (F.); and bollworm, Helicoverpa zea (Boddie)] and to multiple pathogens: Pythium ultimum Trow and Rhizoctonia solani Kuhn, causing seed-seedling disease; Xanthomonas campestris pv.