Agri Diseases

DISEASES OF GROUND NUT – Agricultural study materials

DISEASES CAUSAL ORGANISM Tikka early leaf spot Cercospora arachidicola Tikka late leaf spot Phaeoisariopsis personata Rust Puccinia arachidis Crown rot / Collar rot Aspergillus niger and A. flavus Dry root rot Macrophomina phaseolina Stem and pod rot Sclerotoum rolfsii Anthracnose Colletotrichum dematium Bacterial wilt Pseudomonas solanacearum Bud necrosis or ring mosaic Tomato spotted wilt virus […]


PESTS ON GROUNDNUT – free online study material

Aphid, Aphis craccivora     Hemiptera, Aphididae They are small-sized insects (2 mm long), pear shaped, green, greenish brown or greenish black in colour. Adults are mostly wingless but few winged forms also seen. It has 12-14 generations per year  Nymphs and adults suck sap from tender growing shoots, flowers, causing stunting and distortion of the […]


Pest Affecting Cardomom and Betelvine – Pest control Studymaterial

CARDAMOM Shoot/panicle/capsule borer Conogethes punctiferalis (Pyraustidae: Lepidoptera) It is a serious pest of nurseries in Tamil Nadu, Karnataka and Kerala. Alternate hosts are castor, turmeric, guava, mulberry etc. Larvae bore in to pseudostem of seedlings and feed on nursery plants and young tillers in plantation.  Infestation is indicated by the presence of entry holes plugged […]


Pest In ONION and GARLIC – Pest affecting Onion and Garlic – Pest Studymaterial

Onion Onion Thrips,Thrips tabaci  (Thripidae: Thysanoptera) It is a major cosmopolitan thrips injurious to onion and garlic. Nymphs and adults remain in dense at leaf bases and whorls of onion and feed by lacerating the tissues and imbibing the oozing cell sap.  Infested onion develops a spotted appearance on the leaves; subsequently turning into pale […]


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 […]


SugarCane Pests – Study About Pest – Sugarcane production – Free Study guide

PESTS ON SUGARCANEEarly shoot borer – Chilo infuscatellus (Crambidae: Lepidoptera) P refer 1-3 months old crop. Caterpillar enters the stem by making holes above the ground level.  Formation of “dead heart” is the symptom. Affected plants can be easily pulled out. Rotten portion of the dead heart emits an offensive odour. High temperature, low humidity, […]


Pest on Mango – What are all the Pest Affects mango production – Mango production, Cultivation

MANGO Mango hoppers Idioscopus clypealis, I. niveosparsus, Amritodes atkinsoni      (Cicadellidae: Hemiptera) Hoppers are the most destructive pests of mango. Hoppers are active throughout the year, but abundant during hot months of May to June and cold months of October to January, synchronizing with flowering of mango trees. When inflorescence appears, hoppers start laying […]

Agricultural Study Materials Insects

Pest On Pulses – Agricultural studies

PESTS ON PULSES Gram pod borer –Helicoverpa armigera    Noctuidae: Lepidoptera It is a serious pest of chickpea, pigeonpea, pea, mungbean, urd bean, lentil, soybean, cowpea, cotton, sorghum, okra, maize, tomato, bhendi and sunflower. Larva – polyphagous  Feed on the foliage, when young and on the seed in later stages with their body hanging outside. A […]

Agri manufacturing

PEST Affecting the Fruits – GUAVA, BER, JACK AND PINEAPPLE – Pest Studymaterial

GUAVA Tea mosquito bug Helopeltis antonii (Miridae: Hemiptera) Fruit borer/ Castor capsule borer Conogethes punctiferalis (Pyraustidae: Lepidoptera) Guava fruit flies Bactrocera diversus (Tephritidae: Diptera) Whiteflies, Aleurotuberculatus psidii (Aleyrodidae: Hemiptera) Aphids, Aphis gossypii (Aphididae: Hemiptera) Mealy bugs, Coccus viridis and Ferrisia virgata (Pseudococcidae: Hemiptera) Guava scales Chloropulvinaria psidii (Diaspididae: Hemiptera) Bark borer, Indarbela tetraonis (Metarbelidae: Lepidoptera) […]

Agricultural Study Materials Insects

WHAT IS PEST ON MILLETS – Study About Pest Affects Millets

Millets are indigenous to many parts of the world.The most widely grown millet is pearl millet, which is an important crop in India and parts of Africa.Finger millet, proso millet, and foxtail millet are also important crop species In India, various alcoholic beverages are produced from millets.[31] Millet is also the base ingredient for the […]

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 […]

Agricultural Study Materials Insects

Pest – Definition of Pest – Categories of Pests – Causes of Pest outbreak – Study Guide

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 […]