The symptoms on your avocado plants may be due several reasons.
1. My first guess is it may be due to rotting of roots. Root rot occurs due poor drainage.
2. May be due to sun burn
3. Inconsistent water
4. May be due Anthracnose disease caused by fungus, Colletotrichum gloeosporioides (circular spots on image 2). The appearance of large, tan-coloured spots with dark brown margins on leaves are due to anthracnose. The disease is favored by high humid condition. Sometime you can see pink spore masses on this spots.
Anthracnose disease
May be due to sun burn
May be due to inconsistent watering or root rot
Salt injury
0 Comments