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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 […]
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. […]
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 […]
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 […]