The Factory Production Of Trichogr Amma Dendroliml And Technology Research Of Field Application

Trichogramma spp. is a very large value of beneficial insects in agriculture and a worldwide pestbiocontrol most studied, which is the most widely used class of egg parasitoids in corn, rice, cotton,sugar cane, vegetables and other crops and forests to control a variety of pests. Which T.dendrolimi(Trichogramma dendrolimi) breeded available of tussah egg, low production cost, high rate ofparasitism and better prevention of corn borer, has been widely used in maize producing areas for thecontrol of corn borer damage from to an important role.In this paper, through the study T.dendrolimi industrial production, industrial productionT.dendrolimi identified key technologies and production processes. Through years of continuous fieldapplication T.dendrolimi sunflower against corn borer and testing, demonstration, and to determine theoptimal amount Release times, and improve its field application technology to protect corn andsunflower production safety and health-related industries continued Development to provide technicalsupport.By tussah bare oak cocoon pupa and moth way to compare hair, bare tussah pupa, moth hairtussah cocoon two ways emergence rates were92%and90%; Green Eggs rates were3.04%,2.40%,respectively; single moth fecundity were244.38,253.37; hundred eggs were re916.00mg,925.70mg;T.dendrolimi parasitism rates were82.00%,85.80%respectively. Therefore, the use of bare tussahmoth pupae get fat with eggs T.dendrolimi breeding method is feasible, but because of tussah pupalittle bare a protective cocoon, and its resistance to worse, is not recommended in the production of alarge number of Application.Different ways to save on T.dendrolimi fan tussah bee eggs for comparison. Tussah female mothstake fresh eggs, frozen eggs tussah female moths take to save the wetlands tussah eggs, eggs stored drytussah tussah eggs four different ways to save, compare T.dendrolimi average parasitism rate, averageemergence rate, the average number of eggs a bee concluded with fresh eggs breeding tussahTrichogramma best.Trichogramma species were supplemented with5%,10%,20%honey water, comparing theaverage emergence rate, the average number of eggs and deformities of the bee bee rate. The resultsshowed that the concentration of honey water supplemented with10%of the best, which can beapplied in production.Through the different developmental instars were stored at different times, comparing the rate ofchange of its emergence, concluded at low temperatures4℃, the pupal stage is more appropriatestorage Trichogramma instars, but not suitable for the storage time exceeds20d.T.dendrolimi against corn on field trials, field release per667m2of2release number10000,100003times release, release15,000points2,3times release15000,200002head of release,release200003times,2release25,000points,25,000points three times release correction parasitismcorn borer egg masses were50.10%,51.85%,67.84%,69.59%,71.44%,73.20%,74.95%,75.05%;average control effects were48.85%,49.68%,66.51%,68.04%,69.32%,70.16%,71.77%,72.69%; restore corn yield loss rate was5.28%, respectively,,5.45%,7.66%,7.91%,8.06%,8.14%,8.34%,8.42%. Considering the effect of field control, input costs, the amount of labor, input-output ratio andother factors, against corn field release T.dendrolimi release15,000per667m2, release2times moreappropriate.For the prevention and treatment of sunflower moth T.dendrolimi field trials, each667m2releasequantity30000points2,3times release30000,40000points2release,400003times release,45000sub2release, release450003times,2release50,000points,50,000points release three times theaverage control effect was44.35%,45.51%,53.97%,56.56%,61.39%,64.52%,65.86%,66.34%.Considering the effect of field control, input costs, the amount of labor, input-output ratio and otherfactors, prevention and treatment of the Japanese field release T.dendrolimi borer45,000per667m2release, release3times more appropriate.