DISEASES CAUSAL ORGANISM Seedling blight Phytophthora parasitica Rust Melampsora ricini Leaf blight Alternaria ricini Brown leaf spot Cercospora ricinicola Bacterial leaf blight Xanthomonas campestris pv. ricini 1. SEDLING BLIGHT – Phytophthora parasitica Symptoms The disease appears as circular, dull green patch on both the surface of the cotyledonary leaves. Later it spreads and cause rotting. […]
Tag: pest preparation guide
Disease of Barley Plant – Agricultural study materials
DISEASES OF BARLEY DISEASES CAUSAL ORGANISM Leaf rust Puccinia hordei Stem rust Puccinia graminis f.sp. secalis Stripe rust Puccinia striiformis Covered smut Ustilago hordei Loose smut Ustilago nuda Powdery mildew Erysiphe graminis f.sp. hordei Bacterial leaf blight Pseudomonas syringae pv. Syringae Barley stripe mosaic Barley stripe mosaic virus (BSMV) 1. Stem rust — Puccinia graminis […]
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 […]
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 […]
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 Of Lily, Neriyum, chyrysanthemum,Crotons, Teak, casuarina, Bamboo, Eucalyptus, Neem etc
PESTS OF LILY Leaf caterpillar Polytela gloriosa Noctuidae : Lepidoptera Adult – brown with yellow and red markings. Larva -leaf feeder PESTS OF NERIUM Sphingid caterpillar Deilephila nerii Sphingidae : Lepidoptera Adult: Robust, green moth with yellow markings Leaf butterfly Euploea core Danaidae : Lepidoptera Larva: Blackish brown, […]
Pest Affecting the Production of Jasmine and Rose – Jasmine and Rose pest study material
PESTS OF JASMINE Budworm, Hendecasis duplifascialis Hmpsn Pyraustidae Lepidoptera Caterpillar makes hole on the flower bud and feeds on the inner content. Larva also attacks 2 -3 buds and buds are webbed together by silken threads. Adult is a small white moth with black palpi and three lines on the abdomen and hind legs. Larva […]
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 […]