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中文摘要：
通过田间药效试验，对山东1号、1％碘制剂和健丽壮＋多病宁＋庄伯伯3种药剂对梨树冠瘿病的防治效果、梨产量和糖度进行了比较。结果表明：这3种药剂对梨树冠瘿病都有防治效果，尤其是健丽壮＋多病宁＋庄伯伯混合使用对梨冠瘿病的防治效果达52．11％，防治后果实产量、糖度均有所提高，适合进一步推广。
英文摘要：
By field experiment, the controlling effect, the pear output and the sugar content of three chemicals were compared. The results showed these chemicals could be used to control Agrobacterium turnefaciens. Furthermore, the control effect of the mixture of Jianlizhuang, Duobingning and Perlka was 52. 11%. The output and sugar degree of pear increased. Therefore, the mixture of Jianlizhuang, Duo bingning and Perlka had a value of popularization.
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