摘要
通过田间先施药后接种的方法 ,测定了 5种杀菌剂保护梨叶不受梨黑星菌侵染的持效期。结果表明 :猛杀生和波尔多液两种保护剂的持效期较长 ,施药后 10d ,保护作用效果仍在 5 0 %以上 ;福星和万兴两种内吸治疗剂的持效期较短 ,仅维持 4～ 7d ;三唑酮对梨黑星病菌的保护作用效果较差 ,不宜用于梨黑星病的防治。
The effective duration of five fungicides protecting pear against the infection of Venturia nashicola was investigated via conidial inoculation at different time after application of the fungicides. Results showed that Manzate and Bordeaux Mixture, two protection fungicides, had long protection effect. The effect of the two fungicides on preventing scab infection was above 50% 10 days after application. The protecting effect of Nustar and Charisma, two system fungicides, only last for 4 to 7 days. Triadimefon showed poor effect on preventing pear scab infection.
出处
《莱阳农学院学报》
2004年第1期37-39,共3页
Journal of Laiyang Agricultural College
基金
欧共体资助项目
合同号为 :SMADIA :ICA4-CT -2 0 0 1-10 0 0 1
