Topic
Lepidoptera genitalia
About: Lepidoptera genitalia is a research topic. Over the lifetime, 10114 publications have been published within this topic receiving 78876 citations. The topic is also known as: Uncus.
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TL;DR: Caterpillars of three different species have three peripheral nerve cells in their third antennal segment, which can be stimulated by decreasing temperatures, which exert inhibitory effects on their spontaneous activity.
39 citations
TL;DR: A synthetic female sex attractant pheromone ef spedoptera litura {F.
Abstract: A synthetic female sex attractant pheromone ef spedoptera litura {F.), a mixture of cis9, trans-11-tetradecadienyl acetate (component A) and cis-9, trans-12-tetradecadienyl acetate (coinponent B), for which the name \"litlure\" was proposed, was evaluated in the field. Attractiveness of \"Iitlure:' for male moths changed with the ratio ef the components. The optimum ratio of components A and B ranged frorn 8 : 2 to 39 : 1. A trap baited with l mg \"litlure\" (A : B=10 : 1) was nearly equiva]ent to a trap baited with tO virgin females ef 2-day-old for two months. Neither cisnor trans-isomers of 9and 11-tetradecenyl acetates had synergtstic effect on \"litlure\" or its cornponents.
39 citations
TL;DR: Some 20 species of Lepidoptera were taken from the main pasture types occurring in the North Island in a daylight sweep-sampling survey carried out during the summer of 1957.
Abstract: Summary Some 20 species of Lepidoptera were taken from the main pasture types occurring in the North Island in a daylight sweep-sampling survey carried out during the summer of 1957. The identity of the majority of the species, their distribution, abundance and possible economic importance are discussed.
39 citations
TL;DR: Hybrid Populus plants (clone NC 5339) genetically engineered with a Bacillus thuringiensis cry1A (a) d -endotoxin gene were planted in the field in the summer of 1993 and evaluated for insect resistance 3 times during the 1994 growing season.
Abstract: Hybrid Populus plants (clone NC 5339) genetically engineered with a Bacillus thuringiensis cry1A (a) d -endotoxin gene were planted in the field in the summer of 1993 and evaluated for insect resistance 3 times during the 1994 growing season. Foliage of plants containing the gene encoding the d -endotoxin elicited reduced feeding in bioassays conducted during June, July, and August. Larvae of forest tent caterpillar, Malacosoma disstria Hubner, and gypsy moth, Lymantria dispar (L.), feeding on transgenic leaves consumed significantly less foliage and experienced reduced wet-weight gains compared with larvae fed control foliage. Mortality of early 3rd-instar forest tent caterpillar and gypsy moth feeding on transgenic foliage was greater than for larvae feeding on foliage of controls. Mortality of late 3rd-instar gypsy moth feeding on transgenic foliage did not differ from control larvae.
39 citations
39 citations