Major tea diseases are:-
1.Algal leaf spot of tea: Cephaleuros virescens
Symptom:
Leaves develop lesions that are roughly circular, raised and purple to...
Major Clove diseases are:-
1.Cardamom Seedling Wilt: Cylindrocladium sp., Fusarium sp., Colletotrichum sp., Rhizoctonia sp., and Trichoderma sp
Symptom:
Seedling wilt is found mainly in nurseries and causes five to 40%...
Major turmeric diseases are:-
1.Turmeric Leaf spot: Colletotrichum capsici
Symptom:
In affected leaves, elliptic or oblong spots with a yellow halo are seen.
...
Major Nutmeg diseases are:-
1.Nutmeg Leaf spot and shot hole: Colletotrichum gloeosporioides
Symptoms:
Sunken spots surrounded by a yellow halo are the initial symptoms.
...
Major Vanilla diseases are:-
1.Vanilla Root rot: Fusarium sp., Sclerotium sp.
Symptom:
Browning of roots leading to rotting and decay.
Yellowing of leaves stems and leaves becoming...