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Showing 1 to 13 of 13 for “"Cabbage looper"”.
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Effect of electrostatic fields on insects: the housefly and cabbage looper
… fields on insects were studied using cabbage loopers, Trichoplusia ni (Hubner) and houseflies, Musca domestica L. Two series of tests were conducted; one to determine the electrostatic field effect on the locational preference and the other to determine the field effect on wingbeat. …
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Ocelli and octopamine and their effects on cabbage looper moth flight activity
… regulating the onset, intensity, and duration of cabbage looper moth flight activity were examined. This was achieved by studying the flight activity of control, sham, and anocellate moths with and without octopamine treatment. Sham and anocellate moths were produced by cauterization in …
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Broccoli yield response to cabbage looper and varietal preferences of lepidopterous pests of broccoli
… a nine-day mean of 8.4 and a 15-day mean of 12.1 cabbage looper larvae/plant did not significantly reduce yield in the Spring and Fall respectively. However, means of 7.4 and 11.1 cabbage looper larvae/plant reduced yield (head weight) under drought conditions. Harvest date was not affected by the …
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A study of the fine structure and the function of the ocellus of the adult cabbage looper (Trichoplusia ni, Hübner) (lepidoptera: noctuidae)
The structure of the cabbage looper ocellus was examined by light and electron microscopy. Rhabdoms were found in the distal region of the retinula cells. These were formed by the apposition of microvillar borders of adjacent cells, thus, an interrupted network of rhabdoms was found to exist in …
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Effects of low intensity magnetic fields on cabbage loopers
… fields on insects were studied using the cabbage looper moth, Trichoplusia ni (Hubner). In the first tests, adult loopers were used to determine their locational preference in response to areas of stronger or weaker magnetic field ranging from slightly above the geomagnetic field strength …
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Evaluation of the potential of Pteromalus puparum (L.) (Hymenoptera: Pteromalidae) for suppression of the imported cabbageworm and parasitism of the diamondback moth
The seasonal abundance of the imported cabbageworm, <i>Artogeia rapae</i> (L.)), cabbage looper <i>Trichoplusia ni</i> (Hubner)) and diamondback moth (<i>Plutella xylostella</i> (L.)) was determined in 1982 to 1984 on cabbage in southwest Virginia. The imported cabbageworm was the most important …
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Effects of resveratrol on development of three lepidopteran species varying in diet breadth
… several hostplants that produce resveratrol, the cabbage looper Trichoplusia ni (Noctuidae), a polyphagous folivore that rarely encounters the compound in its host plants, and the tobacco hornworm Manduca sexta (Sphingidae), an oligophagous folivore that feeds almost exclusively on species in the …
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The impact of allelopathic winter rye (Secale cereale L.) and hairy vetch (Vicia villosa Roth) residues on a vegetable cropping system
… interseeded in the fall. The following spring, cabbage (Brassica oleracea var. Capitata L. cv. Bravo), tomato (Lycopersicon esculentum Mill. cv. Market Pride) and snap bean (Phaseolus vulgaris L. cv. Mustang) were planted into cover crops that had been either desiccated with glyphosate …
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A molecular approach to study the monoterpene-induced response in Arabidopsis thaliana
… with monoterpene prior to wounding or feeding by cabbage looper did not reveal any significant priming effect for these pre-treatments.
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Hydrogen peroxide from photosynthesis: Theory and experiments linking elevated atmospheric CO2 with C3 plant chemical defense
… individual plants were paired with larval cabbage looper, Trichoplusia ni. The pattern of induction of defense hormones salicylic and jasmonic acid was consistent with experimental predictions, in that growth under variable CO2 and variable light yielded patterns unique to each environment. …