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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 […]

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 […]