Agri Diseases

DISEASES OF COTTON – Agricultural study materials

DISEASES CAUSAL ORGANISM Fusarium Wilt Fusarium oxysporium f.sp.vasinfectum Verticilium Wilt Verticillium dahliae Grey mildew or Areolate mildew Ramularia areola Root rot Rhizoctonia bataticola Anthracnose Colletotrichum capsici and Glomerella gossipii Leaf blight Alternaria macrospora Boll rot -Complex disease F.monoliforme, C.capsici, A.flavus, A.niger Stenosis or Small leaf Phytoplasma (Mycoplasma like organism) Bacterial blight Xanthomonas campestris pv. malvacearum […]

Agri Diseases

DISEASES OF SUNFLOWER – Agricultural study materials

DISEASES CAUSAL ORGANISM Rust Puccinia helianthi Leaf blight Alternaria helianthi Root rot or charcoal rot Macrophomina phaseolina Head rot Rhizopus nigricans 1. RUST – Puccinia helianthi Symptoms Small, reddish brown pustules (uredia) covered with rusty dust appear on the lower surface of bottom leaves. In severe infection, numerous pustules appear on leaves leading to yellowing […]

Agri Diseases

DISEASES OF PULSES – Agricultural study materials

Common Pulse Diseases COMMON DISEASES CAUSAL ORGANISM Dry root rot Macrophomina phaseolina Leaf spot Cercospora canescens Powdery mildew Erysiphe polygoni Rust Uromyces phaseoli-typica Anthracnose Colletotrichum lindemuthianum Bacterial blight Xanthomonas phaseoli Yellow mosaic Yellow mosaic virus Leaf crinkle Leaf crinkle virus RED GRAM / PIEGON PEA Wilt Fusarium oxysporum f.sp. udum Stem blight Phytophthora drechsleri f.sp. […]


Diseases Of Maize Plant – Study material

DISEASES OF MAIZE DISEASES CAUSAL ORGANISM Downey mildew / Crazy top Peronosclerospora sorghi, P.philipenensis Charcoal rot Macrophomina phaseolina Head smut Sphacelotheca reiliana Leaf blight Helminthosporium maydis Rust Puccinia sorghi 1. DOWNY MILDEW OR CRAZY TOP- Peronosclerospora sorgi Symptoms The development of chlorotic streaks appears on the leaves and plants exhibit stunted and bushy appearance. White […]


Pest Affecting Cruciferous vegetables like cauliflower, cabbage, kale, garden cress, bok choy, broccoli, Brussels – Free Online Studymaterial

CRUCIFEROUS VEGETABLES Cruciferous vegetables are vegetables of the family Brassicaceae (also called Cruciferae) with many genera, species, and cultivars being raised for food production such as cauliflower, cabbage, kale, garden cress, bok choy, broccoli, Brussels sprouts and similar green leaf vegetables. The family takes its alternative name (Cruciferae, New Latin for “cross-bearing”) from the shape […]


Pest Affecting Tomoto Production – Free Online Agri Studymaterial

TOMATO Fruit borer Helicoverpa armigera (Noctuidae: Lepidoptera) It is a major pest of tomato. Main hosts are gram, cotton, citrus, indigo, cowpea, groundnut, linseed, sunflower, bhendi, chilli, millets, tobacco, etc.  Young larvae feed on tender foliage and full-grown caterpillars attack fruits.  They make circular boreholes and thrust their head inside fruit and eat inner contents.  […]


Pest Affecting Brinjal Production – Free Online Agri Studymaterial

BRINJAL Shoot and fruit borer Leucinodes orbonalis (Pyraustidae: Lepidoptera) Leucinodes orbonalis is the most important and destructive pest of brinjal. It starts damaging brinjal plant, few weeks after transplantation.  Larva bores into tender shoots and causes withering of terminal shoots or dead hearts.  It also bores into petioles of leaves, flower buds and developing fruits […]


Pest or Insects Affecting Coffee Production – Types of pest Affecting the Coffee – Free Study Material

PESTS OF COFFEE White stem borer Xylotrechus quadripes Cerambycidae: Coleoptera White stem borer is the most serious pest of Arabica coffee in India.  Alternate host plants include Robusta tree coffee, teak, Oleadioica etc. However, borer usually does not breed in these plants.  Adult is slender and 2.5 cm long beetle. Forewings are black with white […]


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 […]

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 […]

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 […]

Agri manufacturing Agricultural Study Materials Uncategorized

PEST ON WHEAT – Pest Affects Wheat Production-Free Study Guide pest control

Wheat (Triticum aestivum L.) is an important cereal crop cultivated all over the world and consumed by nearly 35% of the world population. It harbours nearly two dozen of insects; among them only half a dozen of insect pests, like aphids, termites, army worm, pink stem borer, pod borer and Ghujhia weevil, attain the major pest […]

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 […]