نتایج جستجو برای: diaeretilla rapae
تعداد نتایج: 407 فیلتر نتایج به سال:
Pinoresinol, a lignan of wide distribution in plants, is found to occur as a minor component in the defensive secretion produced by glandular hairs of caterpillars of the cabbage butterfly, Pieris rapae. The compound or a derivative is appropriated by the larva from its normal food plant (the cabbage, Brassica oleracea). Pinoresinol was shown to be absent from the secretion if the larva was giv...
The angular and spectral reXectance of single scales of Wve diVerent butterXy species was measured and related to the scale anatomy. The scales of the pierids Pieris rapae and Delias nigrina scatter white light randomly, in close agreement with Lambert’s cosine law, which can be well understood from the randomly organized beads on the scale crossribs. The reXectance of the iridescent blue scale...
Abstract The outbreak of the fall armyworm, Spodoptera frugiperda, in Africa has led to several recommendations insecticides, including biopesticides. However, effects these products on environment, especially parasitoids have not been assessed under field conditions. Here, we investigated effect commonly used biopesticides S. frugiperda management and larval northern Ghana. experiments were co...
Biological Invasion of Imported Cabbageworm, Pieris rapae (L.), on Oilseed Brassica in Punjab, India
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