The Study On Integrated Techniques Of Occurrence And Control Of Main Poplar Pests In Shayang County

Poplar of Italy is a black poplar in America which was introduced into China from Italy, and originally distributed in North America. Shayang county is in the central section of the Jianghan plain. The quantity of rain in a year is 1006.3mm, and the date of having no frost is 267.1 ds, and average temperature in a year is 16.1℃ .The poplar has been planted since 80's middle.Mass poplar had been planted in 90's. Enter 21 centuries, its area extends continuously.The area planting poplar now is roughly 6,000 hm~2.The poplar has become important plant planted in the area and the economic source.This study was proceeded in the ShaYang jail farm. By investigating, collecting in the forest and trap and killing under the light and feeding in indoors, the species and its occurrent regulation of pest in the poplar was pointed out. The pest was influenced by the tree's species, forest's constitution and the tree-age. At the same time, we invested effect of pesticide and control method, then got the good result on pest control.In the two years, by the fixed-point observation and feeding in indoors, the total poplar-pest was identified, which comprises 2 Classes, 4 Orders, 13 Families and 24 Species. The poplar-pest is divided into the two major types: the truck-pest and branch and leaf pest. The truck-pest comprises Apriona germari (Hope), Batocera horsfieldi (Hope) and Anoptophora chinensis (Forster). There are a lot of leaf pests, which comprises Erthesina fallo (Thunberg) , Plagiodera versicolora. (Laicharting), Clostera anastomosis (L.) , Clostera anachoreta (Fabricius), Micromelopha troglodyte (Graeser) , Centra menciana Mcore, Botyodes diniasalis Walker, Chidocampa flarescens (Walker), Thosea sinensis (Walker), Smerinthus planus Walker, Agrotis tokionis Butler, Agrotis ypsilon (Rottemberg), Cryptothelea variegata Snellen, Cryptothelea minuscule Butler, Gastropacha populifolia Eaper, Stilpnotia Candida Standinger , Porthesia xanthocampa Dyar, Lymantria dispar (Lianacus) ,Ascotis selenaria (Denis), Apocheima cinerarias Erschoff, Tetranychus viennensis Zacher. But the dominance species are Oostera anastomoas (L.), Clostera anachoreta (Fabricius), Micromelalopha troglodyte (Graeser), Botyodes diniasalis Walker and Plagiodera versicolora (Laichartmg). The Plagiodera versicolora (Laicharting) takes place multi-generation in a year, which lives through the winter by imago and belongs to the supreme pest in the nursery. The Oosteraanastomosis (L.), dostera anachoreta (Fabricius) and Micromelalopha troglodyta (Graeser) take place 5 to 6 generation in a year, and 3 or 4-generation is the most heavy generation,. The Botyodes diniasatis Walker take place 4 generations in a year, with 3-generation is the most heavy period. The Apriona germari (Hope) takes place a generation during two years and lives through the winter by larva in worm path, whose flourish period is Med-June to Up-July. The Batocera horsfideli (Hope) also takes place a generation during two years and lives through the winter by larva in worm path, spanning 3 years, and whose flourish period is Med-May to Up-June.The main Pest Integrated Control Technology in Poplar comprise: strengthening organization structure, reinforce quarantine measure, adding plant measure, adopting the pesticide as urgency method and the physics measure and manpower methods as secondary measure, then effectively controlling the poplar pest and providing the forest production with effective technology guarantee.