Diseases and Pests of Carambola and Their Control

Diseases and their control of carambola

Red spot disease

It harms the leaves of carambola, and small red and yellow spots appear on the affected leaves, which gradually expand and turn into purple-brown to gray-brown. In severe cases, perforation may occur. The prevention and treatment methods are as follows:

Burn the diseased leaves in a concentrated manner to reduce the source of infection, and spray 800-1000 times of 70% thiophanate-methyl solution during the leaf expansion period of the new shoots of carambola.

anthrax

It seriously harms carambola fruits. The symptoms are obvious when the fruits are ripe. The fruits rot and emit a wine smell. Specific prevention and control methods are as follows:

Remove diseased and fallen fruits, and spray 800-1000 times of 70% thiophanate-methyl dilution during the young fruit period of carambola.

Pests of Carambola and Their Control

Fruit fly control

For chemical control, you can use 800 times diluted 90% dichlorodiphenyltrichloroethane for spraying. In terms of physical prevention, good results can be achieved by using bagging to prevent and control its harm.

Bird feather moth

This pest mainly harms flowers and young fruits, and June and July are the peak breeding period for larvae. The prevention and treatment methods are as follows:

Before the carambola blooms and before the small fruits turn to stems, spray 800 times diluted 90% dichlorodiphenyltrichloroethane once every week or so, and spray 2-3 times in a row.

Black-spotted brown leaf roller

The larvae will burrow into the core of the fruit and eat the fruit, causing it to fall. The prevention and treatment methods are as follows:

Remove the diseased fruits and bury them deeply, and spray 800 times diluted 90% dichlorodiphenyltrichloroethane for prevention and control.