Pests and diseases: non-chemical measures in the source
Mealybug: fish oil rosin soap 25 g/l and release of Cryptolaemus beetles (10 per tree). Pink disease: inspect trees in July–September and apply Bordeaux paste early; prune and burn dried branches. Brown root disease: open the roots and prune dead ones. Avoid rubber accumulating at the base of trees. Chemical and copper sprays for leaf fall, powdery mildew, leaf spots, bark canker and rots are also listed — ask your officer.
Pending expert review
Source
Crop Production Guide – Horticulture Crops 2020 (Directorate of Horticulture and Plantation Crops, Tamil Nadu & Tamil Nadu Agricultural University (TNAU)), Rubber – Plant protection, pp. 210–211
