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应用乙磷铝作防治橡胶条溃疡病试验,经过系统的室内、外测试,显示出乙磷铝比常规农药溃疡净有无与伦比的优越性。 割面接种测试结果表明,有效浓度0.4％乙磷铝水悬液的防效与0.5％溃疡净一样好;0.8—1.2％的防效优于溃疡净;而且残效期长,施药后割两刀(第5天)防效仍有61.5—70.3％,可是溃疡净只有7.6％。用25％乙磷铝缓释剂涂施,其残效期更长,据五次重复试验结果表明,在雨季药后5—10天的平均防效为85.5—86.2％;药后14—19天的平均防效仍有69.8～74.0％。大田小区对比防效(自然感病)试验结果表明,每两周施一次缓释剂的防效可达95.4％。
Application of phosphorus phosphorus for the prevention and control of ulcer disease rubber test, after systematic testing, showing the phosphorus than conventional pesticide ulcer net unparalleled superiority. The test results of cutting surface inoculation showed that the effective concentration of 0.4% aqueous solution of sodium aluminum phosphate was as good as that of 0.5% of ulcer; the effect of 0.8-1.2% was better than that of ulcer; furthermore, Knife (Day 5) control effect is still 61.5-70.3%, but the ulcer net only 7.6%. With 25% BEP sustained-release agent application, the residual longer, according to five replicate test results show that 5-10 days after the rainy season the average control effect was 85.5-86.2%; 14-19 days after treatment The average control effect is still 69.8 ~ 74.0%. Ota plot comparison anti-effect (natural susceptibility) test results show that, once every two weeks of a sustained-release agent control effect up to 95.4%.