The Fall Webworm Prevention Of Major Technology Research And Control Applications

According to the production practice of the forestry in Heze city, research onthe prevention and quarantine Technology of the world forestry quarantine pests—American white moth were studied.①Carried out the study of the American white moth biology, first defined theAmerican white moth in Heze life history, occurrence regularity and hostrelationship, for the integrated control of the pests work provides a scientific basis.Observation On the life habit and larval behavior carefully, Found the net curtain oflarvae before age2has a neat swing behavior after frightened, this behavior can beused as a main character identification of American white moth larvae.②The survey of American white moth damage host and natural enemy species,clear the host plants of the American white moth in my city, found the Americanwhite moth in my city can harm plant up to more than80species, Including a varietyof trees, fruit trees, vegetables, agricultural crops, garden flowers and weeds,belonging to36families,51genera, including9species of host plants which likeeating; First investigation of the American white moth natural enemies for our city,through field collection, laboratory rearing methods, systematic investigations ofAmerican white moth species of natural enemies of Heze City, found14species ofnatural enemies, among them parasitic natural enemy insect2, predatory enemies ofthe larvae9, parasitic microorganisms of the larvae3③Successfully resolved the Zhou Tetrastichus breeding and substitute hoststorage technology, come up with large-scale artificial propagation of bee and beeprevention technology, studied the relationship of Zhou Tetrastichus developmentalduration and temperature, calculates the developmental threshold temperature andeffective accumulated temperature; Using the mathematical model to calculate thetheoretical value of the developmental phase.Draw the function relation curves ofthe Fig Wasp developmental duration and temperature, Laid the foundation fordetermination of breeding temperature, time out bee timely prevention. Test to solvea long-distance transport and long-term preservation of the alternative host,determine the best storage mode for the tussah cocoon is turnover box cruciformcross-stacked, do large-scale breeding and perennial breeding. For the first time inthe Heze area breeding the Zhou Tetrastichus successfully, work out a set ofeffective large-scale artificial propagation of bee and bee prevention technology,determined the appropriate stage, put the number of bees and the times of beeprevention, achieved good control effect, Zhou Tetrastichus population greatlyincreased, and also protect and promote the control effect of other parasitic naturalenemy insect. Breeding two years a total of2.867billion, effectively control theoccurrence of and hazards of the fall webworm, and achieve the effect of sustained control.④Study of quarantine and inspection techniques of the American white moth,provides a scientific basis for American white moth origin quarantine and transportand quarantine work.⑤System to developed the research of physical method, pollution-freechemical pesticide, biological agents, artificial measures, aircraft control integratedcontrol technology of the American white moth, summed up the America white mothcontrol calendar in the Heze area, according to the egg mass mostly located onabaxial leaf surface and reflective characteristics, exploration summed up theevening is the best time for picking eggmass. According to the American white mothoccurrence regularity, put forward various measures to coordinate strategy andmethods should be on the basis of the biological research, with the main line offorecasting, classification application strategy, priority ecological management,formulate matching optimal model of the pollution integrated control. Two years topromote the prevention and treatment of American white moth area amounts to3.6032million mus, every mus decrease timber loss0.9174m~3, total recall lumber3.306million m~3, minus the control cost, direct economic benefits1.96billion,without polluting the environment and for human and animals, naturalenemies security, and effective control of the risk, to protect the biological diversity,protection forest health growth, resulting in significant ecological and socialbenefits, for better development of American white moth prevention work in thefuture has direct sense.