Minimizing Table Grape Berry Rot and Disease

Zinc

Zinc deficiency limits healthy growth of the crop. It plays an essential role in the cell multiplication process. Application of zinc fertilizer has a positive effect on berry weight and berry rots in store.

Calcium 

Calcium plays an essential role in lignification and wood maturity. It enables the table grape to tolerate frost and diseases. Application of calcium nitrate reduces the incidence of post-harvest rots in table grape.

Low calcium contents increase berry drop and berry rots.