1959年研究的目的是: 1.进一步明确病苗用链霉素浸漬,結合修剪的防病效果。 2.明确鏈霉素在成株防治上的效果究竟如何。 3.由于国內目前尚未能大量生产农用的链霉素,因之,尚須进一步寻找其他防治溃瘍病有效的土、洋农药及抗生素。一、浸苗处理 (一)2月中旬在福州将带病雪柑实生苗适当修剪后用链霉素浸苗后,春、夏梢发病情况如下: 1959 The purpose of the study is: 1. To further clarify the vaccine with streptomycin impregnation, combined with the pruning effect of disease prevention. 2 clear streptomycin in the prevention and control of the effect of what exactly. 3. As domestic production of streptomycin has not yet been mass-produced, it is necessary to further search for other effective anti-ulcer diseases of soil and marine pesticides and antibiotics. First, the dipping treatment (a) in mid-February in Fuzhou will Xueyu citrus seedlings after appropriate pruning with streptomycin seedlings, the spring and summer shoots incidence as follows: