2. Shot-hole borer Tiny black or brown Shot-hole borer invades beetle damaged or (Xyleborous sp.) Pest associated with physiologically stressed fungal pathogen trees. Maintain tree phytophthora vigor, i.e., through Beetle-pathogen fertilization, irrigation confined on main and regular pruning. trunk or main Wider planting distance branches Use resistant varieties Scrape infested portion, then apply with insecticide 3. Durian Psyllids The adult is greenish Psyllid is Predators feed on this (Allocarsidara brown to brownish prevalent foliar pest incognita) sucks sap of young during Spray with the following leaves flushing. insecticides: Malathion, deltamethrin, Lambdacyhalothrin, Chlorpyrifos, or dimethoate 4-5 times from June to November 4. Bao-bao The adult is Same as control (Haplaphalara sp.) brownish in color, measures for durian short and stubby; psyllids. infests shoots, flowers and fruitlets. It sucks the plant sap of young leaves and flowers and contributes to dropping of fruitlets. The tree may eventually die due to defoliation. 5. Twig Borer or The larvae bore Prune or cut damaged on young branches, then burn. Carpenter Moth plants and small branches or twigs of old trees. 6. Mealy Bugs Spray w/ insecticide when there is heavy infestation Fig. 4. Damaged caused by insect in durian. Table 7. Major diseases of durian.
2. Shot-hole borer (Xyleborous sp.) Tiny black or brown beetle Pest associated with fungal pathogen phytophthora Beetle-pathogen confined on main trunk or main branches Shot-hole borer invades damaged or physiologically stressed trees. Maintain tree vigor, i.e., through fertilization, irrigation and regular pruning. Wider planting distance Use resistant varieties Scrape infested portion, then apply with insecticide 3. Durian Psyllids (Allocarsidara incognita) The adult is greenish brown to brownish sucks sap of young leaves Psyllid is prevalent during flushing. Predators feed on this foliar pest Spray with the following insecticides: Malathion, deltamethrin, Lambdacyhalothrin, Chlorpyrifos, or dimethoate 4-5 times from June to November 4. Bao-bao (Haplaphalara sp.) The adult is brownish in color, short and stubby; infests shoots, flowers and fruitlets. It sucks the plant sap of young leaves and flowers and contributes to dropping of fruitlets. The tree may eventually die due to defoliation. Same as control measures for durian psyllids. 5. Twig Borer or Carpenter Moth The larvae bore on young plants and small branches or twigs of old trees. Prune or cut damaged branches, then burn. 6. Mealy Bugs Spray w/ insecticide when there is heavy infestation Fig. 4. Damaged caused by insect in durian. Table 7. Major diseases of durian.
DURIAN%20PRODUCTION%20GUIDE%20updated%20%20%202017.docx