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茜草科猪殃殃的危害,自80年代初期起成为我们苏中地区三麦生产上突出的矛盾,发生面积与危害程度逐年增加,受害田块一般减产1～2成,严重田块减产3成以上。本地区先后推广单用2甲4氯、苯达松防除,但前者效果不理想,后者成本太高。为此,自1982年开始进行了苯甲混用试验示范和推广。而各地对苯甲混用防效评价不一,防效差距很大。为了探索其原因,我们自1984年起连续三年进行了苯甲混用防效小区试验。
Rubiaceae Galium aparine hazards, since the early 1980s has become our contradiction in the three wheat production in the Central Soviet Area, the occurrence of the area and the degree of harm increased year by year, the general reduction of 1 to 2 percent of the affected plots, the serious reduction of yield 3 pl the above. The region has promoted single 2 A 4 chlorine, bentazone control, but the former effect is not ideal, the latter cost is too high. To this end, since 1982, conducted a mixed experiment demonstration and promotion of benz. The anti-mixed evaluation of mixed with different parts of benzene, a great gap between the control effect. In order to explore its causes, we have conducted a mixed-use anti-fungal cell test for three consecutive years since 1984.