Plant Protection
Tea Insect Management
Botanical Insecticides agaist Pests
ZHOU Shun-yu et al(Department of Agricultural Science,Xinyang Agricultural College,Xinyang,Henan 464000)
[Objective]The paper was to study the efficacy of several botanical insecticides against two pests in tea plantation.
[Method]Using randomized block design,different concentrations of botanical insecticides were sprayed during the young larvae periods of Ectropis oblique hmpulina Wehrli and peak periods of Empoasca pirisuga,the reduction rate of insect and control effects were investigated after spraying for 1,3,7 and 10 d.
[Result]7.5% rotenone EC 800 times had the best control effect against E.oblique hmpulina,and 0.5% veratridine soluble liquid 800 times had the best control effect against E.pirisuga.0.5% veratridine soluble liquid,0.2% Celastrus angulatus Maxim.EC,0.3% matrine water agent and 7.5% rotenone EC could be selected for the control of E.oblique hmpulina;0.5% veratridine soluble liquid,0.2% C.angulatus Maxim.EC,0.3% azadirachtin EC,0.3% matrine water agent and 7.5% rotenone EC could be selected for the control of E.pirisuga,of which 0.3% azadirachtin EC 600 times was the best on sustainable control effect against E.pirisuga with control efficacy of 100% after 7 d.
[Conclusion]The results provided basis for application of botanical insecticides in pests control in tea plantation.
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Keywords:Organic Silicone Agricultural Additive, Polyether Modified Trisiloxane, Organic Silicone Surface Agent, Wetter, Spray Regulator, Pests, Rice, Rice Weevil,
Aggregate Sheath Spot Of Rice, Piricularia Leaf Spot Of Rice, Brown Spot, Bipolaris Oryzae, Panicle Mite, Cockspur Grass, Cyperus Difformis, Forb Steppe,
Banded Sclerotial Blight, Tea, Tea Mosquito Bug, Helopeltis Antonii, Empoasca Flavescens, Tea Green Leafhopper, Tea Tortrix-Caterpillar,
Homona Coffearia, Tea Flush Worm, Cydia Leucostoma, Scarlet Tea Mite, Brevipalpus Phoenicis, Soybean, Phytophthora, Rhizoctonia,
Soybean Aphids, Fusarium Wilt, Wheat, Wheat Aphids, Armyworms On Wheat, Greenbugs, Cereal Leaf Beetle,
Wheat Stripe And Stem Rust, Corn, Root-Knot Nematode, Gray Leaf Spot, Northern Corn Leaf Blight,
Sweet Corn Rust, Aspergillus Flavus, Aspergillus Ear Rot