论文部分内容阅读
苹果腐烂病在我市苹果生产中造成了极大损失,尤其在1960年以后连续出现了三次大发生。据园艺场调查,1963年被害株率达80％,1969年、1979年也十分猖獗,个别分场由于管理措施不当,成年树发病株率高达100％,有的单株病斑竟多达30块。多年来我市对病斑一直沿用刮治的办法。根据日本青森县苹果协会报导,用涂泥法防治苹果腐烂病病疤,效果良好。我们于1979年和1980年进行了实验,效果也较好。 1979年6月11日于园艺七场进行病斑涂泥处理。园艺七场果园处于山坡地,于解放前建园,近年管理工作松弛,树势衰弱,腐烂病逐年加重。此次选主干上的新生病斑107块,进行涂泥试验,即用粘黄土和水调成泥团糊在病斑上,边缘超出病斑5厘米左右,
Apple rot disease caused great losses in the apple production in our city, especially in the three consecutive occurrences after 1960. According to the investigation of horticultural field, the rate of victim plants in 1963 was 80%, and 1969 and 1979 were also very rampant. Due to improper management measures in individual sub-farms, the incidence rate of adult trees was as high as 100%, and some plants had as many as 30 Piece. Over the years the city has always been scraping the lesion approach. According to a report by the Apple Association of Japan Aomori, the use of mud coating method to control apple rot disease scars, the effect is good. We conducted experiments in 1979 and 1980, the effect is better. June 11, 1979 in Gardening seven spots painted mud treatment. Horticultural seven orchards in the hillside, before the liberation of the park, in recent years, management relaxation, tree weakness, decay year after year aggravating. The selected backbone of the new lesion 107, the mud test, that is, sticky loess and water tune into mud paste on the lesion, the edge of more than 5 cm spot,