梨锈病危害木瓜的防治技术探讨

Discussion on Control Technology of Gymnosporangium haraeanum Damage to Chaenomeles sinensis (Touin) Koehe

笔者通过对梨锈病危害木瓜树的危害特征、危害部位、发病原因、发病规律及条件调查,并用20%三唑酮乳油1500～2000倍液进行了防病试验,结果表明:光皮木瓜感病率下降64%,皱皮木瓜感病率下降86%。

Invstigation on Chaenomeles sinensis （Touin）Koehe which was damaged by Gymnosporangium haraea- hum, the damaging feature, damaging position, cause of disease, occurrence regularity were hold in hand. 20 % triadimefon was test for 1 500- 2 000 times. The results showed, that Chaenomeles sinensis （Touin） Koehe which was damaged disease decreased 64%, Chaenomeles speciosa （sweet） Nakai decreased 86%.