【摘要】 香榧细菌性褐腐病主要为害果实,产生褐腐症状,病果大多脱落,影响产量很大。病原细菌是胡萝卜软腐欧氏菌[Erwinia carotovora(Jones) Bergey et al]。 该病在5月上旬开始发生,5月下旬为发病高峰期;病果也在 5月下旬开始脱落,6月上旬为落果高峰期。果实套袋防病的效果很明显,药剂防治以代森铵和退菌特的效果较好。更多还原

【Abstract】 Anew bacterial disease was found on Torreya grandis in Zhejiang Province, China. Brown rots were formed on the fruit and caused severe yield loss of Torreya grandis. The bacterium was found to be a gram-negative rod with several peritricha. Having studied the physiological and biochemical reactions of the organism, we found that the organism is Erwinia carotovora (Jones) Bergey.The disease begin developing in early May and quickly in early June. Fruit bagging is very efficient to control bacterial brown rot of Torreya grandis. Amobam and Tuzet are more efficient fungicides of all the chemicals tested for controlling this disease.更多还原