Insects

Pests on Chillies, Turmeric and Ginger

PESTS ON SPICES AND CONDIMENTS CHILLIES Chilli thrips Scirtothrips dorsalis (Thripidae: Thysanoptera) Thrips cause severe damage in areas where chilli is cultivated as a dry crop. It also attacks on tea, acacia, prosopis, castor, cotton, mango, onion, groundnut, pomegranate, pulses, brinjal grape vine, Citrus sp. and numerous weeds.  Both nymphs and adults lacerate leaf tissues […]

Agri manufacturing Agricultural Study Materials Uncategorized

Pest Affecting fruits – Banana, Apple, Grapes, Fig, Tamarind, Papaya, star goosberry, custard apple, pear, peach and plum

BANANA Rhizome weevil Cosmopolites sordidus (Curculionidae: Coleoptera) It is a major pest of banana. Adult is a stout, reddish brown weevil.  Grub is apodous and yellowish with reddish head. Grub bores into rhizome and tunnels within it. Pupates within a chamber made near the outer surface of rhizome.  Adult also tunnels within stem feeding on […]

Agricultural Study Materials Insects

Pest Affecting Rice – Types Of Pest Affecting rice – Study Material

PEST ON RICE Swarming caterpillar – Spodoptera mauritia     Noctuidae : Lepidoptera It is a serious pest on nurseries and early stage of the crops. During night hours, larvae cut the seedlings in large scale and present a cattle-grazing appearance to the field. Gregarious feeders and march from field to field. Damage is severe in […]

Agri manufacturing Insects

Common Predators and Parasitoids

Beneficial insects and mites belong to three categories: predators, parasitoids, and pollinators. Predators capture and eat other organisms such as insects or mites. Predators include ladybird beetles, ground beetles, lacewings, syrphid (hover) flies, aphid midges (Aphidoletes) and yellowjacket wasps. Parasitoids are insects that parasitize other insects. The immature stages of parasitoids develop on or within its […]

Agri manufacturing Agricultural Study Materials Uncategorized

Enemies of Bees – Honey bee plant production- No of enemies involved

Wax Moth a. Greater Wax Moth       Galleria mellonella Galleriidae : Lepidoptera Adults brown in colour. Female moth enters the hive during night and lays creamy white eggs in groups in the cracks and crevices of the hive and combs and in the gap between super and brood chamber.  Caterpillar is dirty white in colour. Egg, […]

Agricultural Study Materials

Insect Wings & Legs and their modifications – Free Online Studymaterial

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 […]

Agricultural Study Materials

Insects, Characteristics of insects, Dominance of Insects – Factors responsible for dominance – Agricultural Free Online Studymaterial

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, […]