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Cl Class A spot : In the media commercial which are run on a prime time network. Class action : A lawsuit in which one person makes a claim and sues on behalf of a large group of people who have similar legal claims usually against a company or organisation. Class room training : Under […]
PESTS ON COTTONCotton Aphid, Aphis gossypii (Aphididae : Hemiptera) World wide, potential pest – Highly polyphagous, wider host range Nymphs and adults desap on young crop in colonies. Tender leaves curl up, reduced in size, gradually fade and dry up. Plant growth severely shunted. Leaves show oily appearance Sooty mould develops on honey dew on […]
PEST – Derived from French word ‘Peste’ and Latin term ‘Pestis’ meaning plague or contagious disease Pest is any animal which is noxious, destructive or troublesome to man or his interests A pest is any organism which occurs in large numbers and conflict with man’s welfare, convenience and profit A pest is an organism which […]
The thorax consists of three segments viz., pro, meso and metathorax and each bear onepair of legs called fore, middle and hind legs respectively. Legs are the principal organ oflocomotion and they have undergone many modifications and have been adapted to wide rangeof functions. The generalized insect leg consists of six segments. 1. A basal […]
Mouth parts of insects have many variations in structure and function depending upon theirfeeding situations. Insect mouthparts are broadly classified into two groups:- Mandibulate type (Biting types) (Feeding on solid food) Haustellate type (Sucking type) (Feeding on liquid food) I. Mandibulate types1. BITING AND CHEWING TYPEEg.: Cockroach, Grasshopper, Beetles, Larva Labrum: Rectangular plate like Mandibles: […]
ENTOMOLOGY DEFINITION: Entomology is the scientific study of insects. The word ‘Entomology’ is derived from two Greek words ‘Entomon’ meaning insects and ‘logos’ meaning study It is a branch of zoology dealing with Origin & evolution of insects and their diversity & classification, body organisation and function, development, interaction with surroundings in which they live, […]