Ane's Encyclopedic Dictionary of General & Applied by Manjit S Dhooria

By Manjit S Dhooria

Preserving the necessities of academics and researchers in brain, this encyclopedic dictionary provides the terminology in entomology and pest administration within the such a lot real and entire manner. it is also phrases concerning the shut kinfolk of bugs, corresponding to mites and ticks and a few different organisms that are pests of vegetation.

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Chaetosema Chaetosema: In Lepidoptera, sense organs located on the head between the eyes and ocelli. Chaetotaxy: Arrangement and nomenclature of more constantly located setae in the exoskeleton of an insect. Chaetotaxy is important in the systematics particularly in Diplura, Thysanoptera, cyclorrhaphan Diptera and larval Lepidoptera. Clothing hairs, scales, glandular setae and sensory setae are main kinds of setae. Chaff: 1. A dry, thin scale found especially as bracts in flower heads of many composites.

Devised by a Swedish naturalist Linnaeus and now almost universally applied to living organisms. Bioaccumulation: Also known as biomagnification. The accumulation of a chemical by organisms from water directly or through consumption of food containing the chemical. Efficient transfer of chemical from food to consumer, through two or more trophic levels, results in a systematic increase in tissue residue concentration from one trophic level to another. Bioactivity: Pertains to the property of affecting life.

Chitin Synthesis Inhibitors: In insects, benzoyl phenyl ureas interfere in chitin synthesis and are available commercially for agricultural use. Number of these compounds have been marketed quite successfully particularly against the Lepidoptera. These compounds interrupt the moulting process. Although the new skin seems to be formed normally, it is the shedding process which is disrupted and affected. Insects either die within their old cuticle or fail to emerge satisfactorily from it. Although these compounds are effective but are rather still expensive compared with traditional pesticides.

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