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Evaluating host plant resistance in cotton (Gossypium hirsutum L.) with varying gland densities to tobacco budworm (Heliothis virescens F.) and bollworm (Helicoverpa zea Boddie) in the field and laboratory
Cotton Gossypol Helicoverpa Heliothis Terpenoid Aldehydes
2013/2/27
Cotton (Gossypium hirsutum L.) produces a number of toxic terpenoid aldehyde (TA) compounds contained in epidermal glands that help protect the plant from pests and diseases. In the seed, one of these...
Alternate Crop Hosts as Resistance Management Refuges for Tobacco Budworm, Heliothis virescens, (Lepidoptera: Noctuidae) in North Carolina
Alternate Crop Hosts Resistance Management Refuges Tobacco Budworm virescens
2008/12/15
A three-year evaluation of host crop use by the tobacco budworm [Heliothis virescens (F.)], was conducted from 2001 to 2003 in the central coastal plain of North Carolina. Weekly monitoring of commerc...
Mating Incidence of Feral Heliothis virescens (Lepidoptera: Noctuidae) Males Confined with Laboratory-Reared Females
Laboratory-Reared Females Feral Heliothis virescens Mating Incidence
2008/5/19
Testing insecticide susceptibility on moths captured in the field has facilitated research through access to ample samples of feral insects. Traps baited with pheromones can provide numerous males, bu...
实地调查结果表明:野生绿菇每年6～9月份大量出菇，其间林间土壤温度为19～24.5℃，含水量为54%～68.5%，近地空气温度为20.5～25.5℃，相对湿度61.5%～94.5%。绿菇在8－40年生的马尾松林中都可大量出菇并正常地生长发育，林分结构通常以马尾松为主，郁闭度50%~80%，下层灌木为稀疏壳斗科植物，草本层为稀疏茅草或蕨类。土壤腐殖质及落叶层的厚度对子实体的发生影响不明显，但土壤pH...