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1 根腐病的防治近年来 ,由于环割、环剥等促花措施的实施 ,使树体过早衰弱 ,根腐病大面积发生。笔者曾用甲托、五氯硝基苯、树枯灵、石硫合剂、石灰水、硫酸铜液、退菌特、菌毒清、复方苦参等进行过试验 ,除石灰水以外 ,其它都有一定效果 ,以菌毒清效果好 ,但也不很理想 ,唯有
1 root rot prevention and control In recent years, due to ring cutting, girdling and other flowers to promote the implementation of measures to make the tree premature weakness, root rot occurs in large areas. I have used a care, Pentachlorobenzene, tree withered spirit, lime sulfur mixture, lime water, copper sulfate solution, the bacteria special, bacteria drug Qing, Sophora flavescens and other tests were carried out, except for lime water, the other Have a certain effect, the effect of bacteria toxin clearance is good, but not very satisfactory, only