Blog — Disease
Agronomy notes, crop schedules, spray practice and product guidance — written for the farmer and the dealer counter. A new post every morning.
Groundnut leaf spot: the calendar spray that pays
Groundnut leaf spot is one of the few diseases where a preventive schedule genuinely beats scouting, because by the time it is visible the leaves are already going.
Maize turcicum leaf blight and rust
Both diseases work from the lower leaves upward, and both matter only in relation to one question: how much green leaf is left at grain filling.
Chilli die-back: when the plant dies from the tip down
Die-back and fruit rot are two faces of one problem, and treating only the fruit leaves half of it running.
Chilli anthracnose: the rot that shows up after the rain
Anthracnose infects green fruit and appears when it ripens. By the time you can see it, the infection happened weeks ago.
Paddy blast and bacterial leaf blight: telling them apart
Blast and bacterial leaf blight are the two big paddy diseases, they look nothing alike once you know, and they need different products.
Cotton boll rot and bacterial blight in a wet season
A wet spell after canopy closure brings rots and blight together, and the canopy you built earlier decides how bad it gets.
Grapes: the calendar is the crop
In grapes the pruning-to-harvest calendar dictates everything, and both major diseases are won or lost before symptoms appear.