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 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 […]

Insects

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, […]

Insects

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 […]

Insects

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 […]

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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 […]