Management Technology Based On Chemical Ecology Of Some Pests In Fruit Orchards

Wei bei district is the main apple production areas in Shannxi. Carposinani sasakil, Lithocolletis ringoniella and Adoxophyes orana are the major pests in these areas. Over the years, people have been using insecticides to control pest, causing pollution of the environment, killing enemies and insect resistance reinforced, pesticide residues in fruit is increased, and a series of questions. Sex pheromone isotropic method and trapping method to control the pest, is the preferred method of prevention. In recent years, was to isotropic method and trapping method to control the apple pest research; prevention and treatment with sex pheromone apple pests is a non-pollution control measures, for this reason the author controlled the pests with the japanese sex pheromone in the 2005-2006. The main results are as follows:1. The effects of the color, shape, height in the crown, lure colors and lure dosage of the sex pheromone traps on capture of Lithocolletis ringoniella male moth were evaluated.Trap catches of the white traps and the green traps more than two times higher than blue one.The white traps and the green traps were much more effective than blue one.The trapping effect were no significant difference both water bottle types and triangle types.Trap catches of the traps hung middle part of the crown were 2 times higher than those of in upper part.The former was much more effective than the latter.The trapping effect were no significant difference both blue lure types and red lure types.The trapping effect were no significant difference both single lure types and dual lure types.2. The experiment of mating disruption of confuser-A introduced from Japan control apple major pests included Carposinani sasakil, Lithocolletis ringoniella and Adoxophyes orana, in one year or two years. It showed that not only the rate of injured reduced about 40 % to 90 %, compared with the check, but also the use method is simple, and only use one times one year. Through trapping of sexual trap introduced from Japan control Carposinani sasakil and Lithocolletis ringoniella can also gain good results, especially in the moth amounts of trap, it is obviously higher than the same type internal products.