Rust Puccinia carthami Leaf spot Cercospora carthami Leaf blight Alternaria carthami 1. RUST- Puccinia carthami Symptoms The pustules (uredosori) are chestnut brown in colour and scattered throughout the leaves. Later, black teliosori are formed on the leaves. Stem girdling occurs in older plants and rust pustules also appear on roots. Uredia and telia are produced […]
Tag: Diseases occurs in maize
DISEASES OF GINGELLY OR SESAME – Agricultural study materials
DISEASES CAUSAL ORGANISM Leaf blight Alternaria sesami Leaf spot or white spot Cercospora sesami Leaf and stem blight Phytophthora parasitica var sesami Root rot or charcoal rot Macrophomina phaseolina Wilt Fusarium oxysporium f.sp.sesami Powdery mildew Erisiphe cichoracearum Bacterial blight Xanthomonas campestris pv.sesami Bacterial leaf spot Pseudomonas sesami Leaf curl Nicotiana virus Phyllody Mycoplasma – like […]
Diseases of Cumbu, Pearl, Millet, Bajra – Agricultural study materials
DISEASES OF CUMBU/PEARL MILLET/BAJRA DISEASES CAUSAL ORGANISM Downy mildew or green ear Sclerospora graminicola Ergot or sugary disease Claviceps fusiformis Smut Tolyposporium penicillariae Rust Puccinia penniseti 1. DOWNY MILDEW/GREEN EAR – Sclerospora graminicola Symptoms The first symptom appears in seedlings at 3-4 leaf stage. Affected leaves show patches of light green to light yellow colour […]
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 […]