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 […]
Tag: how to control pest
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 […]
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 […]
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 […]
Pests on Chillies, Turmeric and Ginger
PESTS ON SPICES AND CONDIMENTS CHILLIES Chilli thrips Scirtothrips dorsalis (Thripidae: Thysanoptera) Thrips cause severe damage in areas where chilli is cultivated as a dry crop. It also attacks on tea, acacia, prosopis, castor, cotton, mango, onion, groundnut, pomegranate, pulses, brinjal grape vine, Citrus sp. and numerous weeds. Both nymphs and adults lacerate leaf tissues […]
SugarCane Pests – Study About Pest – Sugarcane production – Free Study guide
PESTS ON SUGARCANEEarly shoot borer – Chilo infuscatellus (Crambidae: Lepidoptera) P refer 1-3 months old crop. Caterpillar enters the stem by making holes above the ground level. Formation of “dead heart” is the symptom. Affected plants can be easily pulled out. Rotten portion of the dead heart emits an offensive odour. High temperature, low humidity, […]
Pest on Mango – What are all the Pest Affects mango production – Mango production, Cultivation
MANGO Mango hoppers Idioscopus clypealis, I. niveosparsus, Amritodes atkinsoni (Cicadellidae: Hemiptera) Hoppers are the most destructive pests of mango. Hoppers are active throughout the year, but abundant during hot months of May to June and cold months of October to January, synchronizing with flowering of mango trees. When inflorescence appears, hoppers start laying […]
GLOSSARY BUSINESS ADMINISTRATION – Words starts with ch
Words and Its Meanings Chain of command : A system in a business or in the military in which authority is wielded and delegated from top management down through every level of employees.in a chain of command instructions flow downwards and accountability flows upwards. Challenging jobs : Knowledge workers want to have in which require […]
PEST Affecting the Fruits – GUAVA, BER, JACK AND PINEAPPLE – Pest Studymaterial
GUAVA Tea mosquito bug Helopeltis antonii (Miridae: Hemiptera) Fruit borer/ Castor capsule borer Conogethes punctiferalis (Pyraustidae: Lepidoptera) Guava fruit flies Bactrocera diversus (Tephritidae: Diptera) Whiteflies, Aleurotuberculatus psidii (Aleyrodidae: Hemiptera) Aphids, Aphis gossypii (Aphididae: Hemiptera) Mealy bugs, Coccus viridis and Ferrisia virgata (Pseudococcidae: Hemiptera) Guava scales Chloropulvinaria psidii (Diaspididae: Hemiptera) Bark borer, Indarbela tetraonis (Metarbelidae: Lepidoptera) […]
Pest Affecting Rice – Types Of Pest Affecting rice – Study Material
PEST ON RICE Swarming caterpillar – Spodoptera mauritia Noctuidae : Lepidoptera It is a serious pest on nurseries and early stage of the crops. During night hours, larvae cut the seedlings in large scale and present a cattle-grazing appearance to the field. Gregarious feeders and march from field to field. Damage is severe in […]
Pest – Definition of Pest – Categories of Pests – Causes of Pest outbreak – Study Guide
PEST – Derived from French word ‘Peste’ and Latin term ‘Pestis’ meaning plague or contagious disease Pest is any animal which is noxious, destructive or troublesome to man or his interests A pest is any organism which occurs in large numbers and conflict with man’s welfare, convenience and profit A pest is an organism which […]