番茄早疫病药剂防治研究

    摘要： 采用生长速率测定法对6种杀菌剂对番茄早疫病进行了室内药剂筛选试验, 结果表明：在稀释1500倍液中，除安泰生(富锌)抑制生长率较小外，其它均为90%以上；从EC95来看，25%施保克EC和50%扑海因SC对番茄早疫病菌有很强的抑制作用，其值分别为408.8518ug/ml、571.5704 ug/ml ；从毒力方程的斜率来看，番茄早疫病菌对这两种药剂敏感性差异小，长期使用不易使病菌产生抗药性。田间防效试验结果表明，50%扑海因SC、40%施佳乐SC、70%代森锰锌WP对番茄早疫病的防治效果无显著差异；从防效考虑，建议在推广中每667m2用50%扑海因SC75-100g或40%施佳乐SC 50-100g防治番茄早疫病。

关键词:   番茄早疫病   杀菌剂 室内筛选  大田试验 防治效果

Chemical Control Of Tomato Early Blight

    Abstract： Growth rate measurement method using 6 kinds of fungicides on tomato early blight were Fungicide screening test results showed that: in the diluted 1500 times, in addition to An Taisheng (zinc) inhibit the growth rate of the smaller, the other 90% are Above;From the point of view EC95, 25% Shi Bao Ke EC and 50% Iprodione SC on solani has a strong inhibitory effect, and its value as 408.8518ug/ml, 571.5704 ug / ml;Equation from the slope of the virulence of view, solani insecticide susceptibility between these two small, long-term use is not easy to make bacteria resistant.Field efficiency test results show that 50% Iprodione SC, 40% pyrimethanil SC, 70% Mancozeb WP on Tomato Early Blight was no significant difference;From the control effect, it is recommended in the promotion of 50% for each 667m2 Iprodione SC75-100g or 40% of pyrimethanil SC 50-100g of tomato early blight control.

     Key words：tomato early blight  microbicides  Indoor screening   Field experiment  Control effect

                                   

目  录

摘要……………………………………………………………………………1

关键词…………………………………………………………………………1

1 前言…………………………………………………………………………………2

  1.1番茄早疫病的发病条件………………………………………………………2

  1.2番茄早疫病的防治方法………………………………………………………3

  1.3国内外研究动态及发展趋势…………………………………………………3

2 材料与方法…………………………………………………………………………4

   2.1 供试菌种、药剂和番茄品种 ………………………………………………4

   2.2 室内筛选试验 ………………………………………………………………5

   2.3 大田试验 ……………………………………………………………………5

 2.3.1试验地点………………………………………………………………5

2.3.2小区设计及排列………………………………………………………5

2.3.3施药的时期与方法……………………………………………………6

2.3.4调查时间、次数及内容………………………………………………6

   2.4  试验实施过程………………………………………………………………7

   2.5  调查计算方法………………………………………………………………7

3 结果与分析…………………………………………………………………………8

   3.1  番茄早疫病防治药剂室内筛选试验………………………………………8 

   3.1.1  药剂对番茄早疫病的抑制生长率…………………………………8

   3.1.2  各药剂对番茄早疫病的抑制作用…………………………………8

   3.2  大田防治番茄早疫病田间药效比较试验…………………………………9

4  结论与讨论………………………………………………………………………10

参考文献 ……………………………………………………………………………11 

致谢 …………………………………………………………………………………13