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Chemical control citrus rust niches
According to the author's many years of practical experience, chemical control of orange rust ticks, the effect of better agents are: 20% eradication of the emulsion 2000 times solution; 35% killing scorpion or konjac more 1500 to 2000 times; 50% ethyl sulfide Phosphorus 1500 times; 65% zeosyn zinc wettable powder 600 times; 40% water phosphathiocin 1500 times. The above agents are used interchangeably or 2 to 3 agents are mixed and used. Spraying 3 to 4 times during the entire period of damage of the rust mites, especially in July, August and September, should be sprayed once a month to ensure no leakage of fruit. The back and the leaves of the leaves should be evenly sprayed. Only in this way can a good control effect be achieved. At the same time, attention should be paid to the occurrence of serious orange orchards in the rust mites. During the period of activity (33-September), lime sulfur should not be sprayed. Otherwise, the occurrence of rust mites is greater and the damage is heavier, which is not worth the candle.