Study of nymphal development and nymphal growth after effects of aphids by the application of neem seed kernel.
- Author Dr. R.K. Jain
- DOI http://wwj
- Country : India
- Subject : Botany
Keywords : Vectors, whiteflies, Bemisia tabaci, Aphis gossypii, Soil amendments
Abstract
The aphids like Aphis gossypii A. Craccivosa, Brevicoryne Brassicae, Myzus persicae and Rhopalosiphum maidis are most prominent insect viral vectors. The time of arrival of aphids on the host plants was found to vary, the infestation of these different species of aphids occur mostly during cooler weather conditions in temperature range of 70-350 C. Accordingly due to favorable incidence on to the under surface of leaves, the oviposition starts which is different for different species in terms of density then nymphs behaviour is found varied on spraying of neem cake kernel powder solution by its different concentrations.
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