Agri Diseases

Disease of Oats plants – Agricultural study materials

Diseases of oats DISEASES CAUSAL ORGANISM Septoria avenae blotch    Phaeosphaeria avenaria f.sp. avenaria Stem and leaf rust            Puccinia graminis var. avena Leaf spot Drechslera campanulata Bacterial blight Pseudomonas syringae pv.striafaciens Yellow dwarf      Barley yellow dwarf virus 1. Septoria avenae blotch   — Phaeosphaeria avenaria f.sp. avenaria Symptoms The fungus infects leaves, sheaths and stem and […]

Agri manufacturing

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) […]

Agricultural Study Materials

Insect Mouth Parts and their Modifications – Agricultural studies – Free Online Studymaterial

Mouth parts of insects have many variations in structure and function depending upon theirfeeding situations. Insect mouthparts are broadly classified into two groups:- Mandibulate type (Biting types) (Feeding on solid food) Haustellate type (Sucking type) (Feeding on liquid food) I. Mandibulate types1. BITING AND CHEWING TYPEEg.: Cockroach, Grasshopper, Beetles, Larva Labrum: Rectangular plate like Mandibles: […]