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Study on Population Surveys and Sustainable Control of Major Pest Species of Sophora Ponica for the Trees Along the Street in Xi’an

Author: JingXinHong
Tutor: LiuYaLi
School: Northwest University of Science and Technology
Course: Landscape Architecture
Keywords: Street trees Sophora japonica Pest population survey Sustainable prevention Xi'an
CLC: S763.7
Type: Master's thesis
Year: 2010
Downloads: 53
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Abstract


Sophora japonica Xi'an City tree, grown under site conditions such bad roads in the city vulnerable to pest invasion investigation ,2007-2010 Xi'an street trees pagoda tree (Sophora japonica) pest population and States Huai pests, the following main results: 1. identify basic Xi'an street trees Sophora japonica pest species, found common pest on 23 kinds of street trees Sophora japonica, including prevention and heavier need 9 species Sophora japonica leaf mite (Tetranychus truncates Ehara), in Huai aphid (Aphis robiniae Mzcchiati), Huai psyllid (Cyamophila willieti Wu), the Folium cicada (Cicadella viridis L.), Huaihua ball Kuwana (Eulecanium kuwanai Kanda ), Drosicha Kuwana (Drosicha corpulenta Kuwana), Huai geometrid (Semiothisa cinerearia Bremer et Grey), Sophora japonica the petioles small moth (Cydia trasias Meyrick), bidentate bark beetles (Sinoxylon japonicus Lesne). Nine common pests Occurrence, distribution investigation found the Sophora japonica pest population dynamics of change by time change. March to early May, sucking mouthparts pests such as Sophorae ball the Kuwana, Cassia aphid dominant position; dominant position in mid-May to early June, Cassia geometrid Huai the petioles small moth chewing mouthparts pests; early June to mid-July, Sophora japonica leaf mites dominant position; late July to mid-August the Huai aphid and Huai psyllid dominant position; late August to September on the dominant position in mid-Huai petiole small moth; 9 In late May to early October, the the Huai geometrid last generation larvae become the the Sophora japonica main control object. 3 according to the rise and decline of Sophora japonica number of pests in Pharmacy spray Sophora japonica growing season Sophora japonica geometrid Huai aphid, the Huai the petioles small moth, Sophora japonica leaf mites pests, trunk injection, suspension sex pheromone etc. prevention and treatment method of prevention trials, the results showed that the spray test, Rickettsia mites 24.5? 2500 times spray control effect on of Sophora japonica spider mites instars. Acetamiprid 20% WP5000 times the spray Drosicha Kuwana best control effect. Trunk injection test tree insects a needle net Huai feet geometrid the prevention effect obvious, and more than 40 days of Cassia aphid control effect, hanging sex luring agent Huai petiole small moth control effect obviously, 1200 lured core of 2400 Zhu The pagoda tree were trapping Cassia petiole small moth male adult 45084. Pest control trials, to establish a the pagoda tree pests sustainable prevention mode. Paper tape can be wound before the Spring Festival to prevent Drosicha Kuwana tree; mid-March on the the Sophora japonica germination 5 degrees before spraying Baume lime sulfur kill the bark crevices of spider mite eggs, nymphs; 3-4 months a timely manner under the adhesive tape the Drosicha Kuwana spraying control; small moth adults the suspension sex pheromone control Huai petiole in late April; May by spray method of petiole small moth prevention Huai Huai geometrid larvae; against Cassia aphid in late May to early June, pagoda tree lice, leafhoppers; June-July prevention Sophora japonica spider mites; 7 months late suspension sex pheromone control Huai petiole small moth adults; August Combat Huai aphid Huai psyllids, leafhoppers sucking mouth control pests; September, October the main prevention Huai petiole small moth and locust geometrid larvae; November locust geometrid serious Lot digging pupae.

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CLC: > Agricultural Sciences > Forestry > Forest Protection > Forest Pest and Disease Control > All kinds of tree pests and diseases and their prevention
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