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 GINGELLY OR SESAME – Agricultural study materials

DISEASES CAUSAL ORGANISM Leaf blight Alternaria sesami Leaf spot or white spot Cercospora sesami Leaf and stem blight Phytophthora parasitica var sesami Root rot or charcoal rot Macrophomina phaseolina Wilt Fusarium oxysporium f.sp.sesami Powdery mildew Erisiphe cichoracearum Bacterial blight Xanthomonas campestris pv.sesami  Bacterial leaf spot Pseudomonas sesami Leaf curl Nicotiana virus Phyllody Mycoplasma – like […]

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 […]

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. […]

Agri Diseases

Diseases of Cumbu, Pearl, Millet, Bajra – Agricultural study materials

DISEASES OF CUMBU/PEARL MILLET/BAJRA DISEASES CAUSAL ORGANISM Downy mildew or green ear Sclerospora graminicola Ergot or sugary disease Claviceps fusiformis Smut Tolyposporium penicillariae Rust Puccinia penniseti 1. DOWNY MILDEW/GREEN EAR – Sclerospora graminicola Symptoms The first symptom appears in seedlings at 3-4 leaf stage. Affected leaves show patches of light green to light yellow colour […]

Uncategorized

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 […]

Agri Diseases Uncategorized

Diseases of Wheat – Free Online Studymaterial

DISEASES OF WHEAT DISEASES CAUSAL ORGANISM Black / Stem rust Puccinia graminis tritici Leaf / brown / orange rust Puccinia recondita Yellow / stripe rust Puccinia striiformis Loose smut Ustilago nuda tritici Flag smut Urocystis agropyri Rough spore bunt / stinking bunt Tilletia caries Smooth spored bunt Tilletia foetida Kernal bunt Neovassia indica Powdery mildew […]

Agri Diseases

DISEASES OF RICE – Fungal, Bactorial and virus diseases – Online Studymaterial

Important diseases of rice DISEASES CAUSAL ORGANISM FUNGAL DISEASES Blast Pyricularia oryzae Brown spot or Sesame leaf spot Bipolaris oryzae (Helminthosporium oryzae) Sheath blight Rhizoctonia solani Sheath rot Sarocladium oryzae Narrow brown leaf spot Cercospora janseana Stem rot Sclerotium oryzae Foot rot or Bakanae disease Fusarium moniliforme False smut Ustilaginoidea virens Udbatta disease Ephelis oryzae […]

Insects

Pests On Tuber Crops – Potato, sweet potato – Insects study materials

PESTS ON TUBER CROPS POTATO Cutworms,    Noctuidae: Lepidoptera Common cutworm,     Agrotis segetum  Black cutworm, Agrotis ipsilon  Spotted cutworm, Xestia C-nigrum  Variegated cutworm, Peridroma saucia Feed on foliage Cut tender stem Larvae remain in soil Larva dark brown in colour  Pupates inside the soil Adult – brown fore wings with spots and markings Potato […]

Insects

Pest Affecting moringa, drumstick tree, horseradish tree, and ben oil tree or benzolive tree – Free Study Material

MORINGA Moringa oleifera is a plant that is often called the drumstick tree, the miracle tree, the ben oil tree, or the horseradish tree. Moringa has been used for centuries due to its medicinal properties and health benefits. It also has antifungal, antiviral, antidepressant, and anti-inflammatory properties.Pod fly Gitona distigma (Drosophilidae: Diptera) Aematurely and full-fed caterpillars come out […]

Insects

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 […]

Uncategorized

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.  […]

Insects

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 […]