Plant Diagnosis

Fungal disease causing dark sunken lesions on fruits and vegetables caused by Colletotrichum spp.

Soil-borne bacterial disease causing rapid wilting in kitchen garden solanaceous crops caused by Ralstonia solanacearum during May-September.

Sudden wilting of plants with no yellowing caused by Ralstonia solanacearum in April–July, peak in May–June.

A fungal disease causing seedling death shortly after germination caused by Pythium, Rhizoctonia, Fusarium etc during December–March.

Yellowing of upper leaf surfaces with grayish downy growth underneath caused by Oomycetes like Peronospora, Plasmopara in Jan–March, July–Oct .

Dark spots on leaves with concentric rings caused by Alternaria solani during June–September.

Greasy lesions and rapid plant collapse caused by Phytophthora infestans during July–October

Fungal or bacterial spots on leaves causing defoliation caused by Fungi (Cercospora, Alternaria), bacteria in July–Oct (high humidity.

White powdery fungal growth on plant surfaces caused by Fungal pathogens (Erysiphe, Oidium) during March–June, Sept–Nov (dry, warm periods).

Common fungal disease causing white powdery coating on vegetables caused by Erysiphe cichoracearum, Podosphaera xanthii during October-March.

White powder on leaves/stems caused by Erysiphe, Oidium, Sphaerotheca spp during March–June, September–November.

Algal disease causing reddish-brown spots on tea leaves caused by Cephaleuros virescens (parasitic alga) in June-October (monsoon season).