Study On The Occurrence And Control Of Main Pests On The Gardenia Jasminoides Ellis

Gardenia jasminoides Ellis is a common Chinese traditional medicinal materialsincluded in the 2000's pharmacopcacia of People's Republic of China. it is the dry root androotstalk of the plant of Fructus gardeniae. Whereas there are no guidelines of GAP ofGardenia jasminoides Ellis, under the guidance of the principle of GAP, researched thepest management in the GAP of Gardenia jasminoides Ellis for the first time in the regionof Xiaogan Hubei. The results are as follows:The result of the systematical research on the Population in gardenia field in Xiaogancity showed that there were about 140 species in the arthropod community. Among them114 species belong to Insecta and 26 species belong to Aranerda. Ceroplastes japonicusGreen, Archernis tropicalis Walker, Myzus persicae (Sulzer), Gryllotalpa africanaPalisot, Anomala corpulenta Motschulsky, Anomala corpulenta Motschulsky, Holotrichiaparallela Motschulsky, Cephonodes Hylas Linnaeus are the main pests in the gardeniafield while the major nature enemies are Macrocentrus linearis Nees, Trichogramma spp.,Chrysopa septempunctata Wesmael and Coccinella septempunctata Linnaeus.The field investigation and the field controlling trial were carried out for the research.Archernis tropicalis Walker occurred for 4 generations annually in Xiaogan area of HubeiProvince. It overwintered as larva inside thin cocoons in the litter, resumed feeding inMarch next year, and began to pupate in the first 10 days of April. Adultses and eggsappeared in the second or last 10 days of April, from then to mid-June was the occurrenceand injuring period of the first generation larva. Major occurrence period of the secondgeneration larva lasted from the first or second 10 days of July to mid-August, the thirdgeneration larva appeared in the first or second 10 days of September and injuring lastedto the first or second 10 days of November, the fourth generation larva (the overwinteringgeneration) making thin cocoons entered the overeintering period of dormancy. Theresult of five commercial pesticides against A. tropicalis Walker in field trial showed thatthe controlling effect were over 92% when used in proper period.The field investigation and the plot controlling trial were carried out for the research.Ceroplastes japonicus Green overwintered as female adult in the limb, and began tooviposit in the first 10 days of May next year, with the incubation peak appeared in thefirst or second 10 days of June. Male and female larva began to differentiation in the lateJuly, and the male adult emergence peak appeared in the first 10 days of September.Newly emerged male adult mated with female adult, and died after 2～3 days. Femaleadult enter into the overwintered stage in the middle 10 days of the November. The result of five commercial pesticides against Ceroplastes japonicus Green in field trial show thatthe controlling effect of 25% thiamethoxamWG 5000 times, 48% chlorpyrifos EC 1000times were 83.41%, 76.45%.Effectiveness of the Jiaduo insect killer lamp in monitoring and controlling pestswas tested in the gardeniae field. The results showed that the lamp effectively attracted themajor pests, Holotrichia parallela Motschulsky, Gryllotalpa africana Palisot, Anomalacorpulenta Motschulsky, Archernius tropicalis Walker and Cephonodes Hylas Linnaeus.The proportion of lured pests and natural enemies was 1:218.49 to 1: 96.5.The attractedmajor natural enemies were Chrysopidae, Coccinellidae and Bramnidaee. The resultrevealed that the damaged rate of leaves in the fields where the lamps were placedreduced 2.5% to 22.9% compared with those without lamps, indicated the lamp canreduce the larval descity and control the injury of pest efficaciously. According to thetrapped time of adults, amount and growth period at the same time, the dynamic changewas basically coincident and the lamp can apply to forecast the occurred time and amountof larva. It maked clear occurrence gegulatity of the main underground pests, Holotrichiaparallela Motschulsky, Gryllotalpa africana Palisot, Anomala corpulenta Motschulsky,with excavation investigation and use the insect killer lamp lured adults.