7、It is unavailable to waste pesticides and pollute the environment by using conventional chemical control of insect pest.
11、Crude extracts of Vitex negundo seeds were tested for insecticidal activity against five insect pest species andsafety to the multicolored ladybeetle (Harmonia axyridis).
15、Bed bug fear or bedbug worry concept as a cast shadow of a a parasitic insect pest resting on a pillow and sheets as a symbol and metaphor for the anxiety as a 3d illustration.
19、control of crop insect pests in ancient China
23、Then, when droughts or outbreaks of diseases and insect pests ravaged crops, famine resulted.
4、The results showed: the peach borer has been one of the most important corn insect pest.
9、The concentrations of Cd and Cu are different in the different parts of the male and female insect pest .
14、The known diseases and insect pests of Cycadaceae in China and their control were summarized, and 4 species of disease and 45 species of insect pest damaging Cycadaceae plants in China were recorded.
20、Checklists of the known diseases and insect pests were provided, and the identification keys were prepared separately for the known diseases and insect pests of Cycadaceae in China.
2、An insect pest fatal to cotton had struck the crop.
8、The cane toad was introduced back in 1935 to control an insect pest that was destroying Australia's sugarcane plantations.
16、Propylaea japonica is one of important predatory natural enemies in arid and semi-arid area China, especially those preying on younger larvae and eggs of insect pest in orchards and cotton fields.
22、Blaustein: We would have a heck of a lot more insect pests around.
6、Red spider is a kind of thorn sucks type pest, once discover insect pest, usable sweep mite clean or mite bug is clear destroy kill.
17、The ratio vegetation index(RVI)method is combined with field survey of insect pest to determine critical values of RVI for different degrees of disaster and the judgement accuracy reaches 73%.
3、The severe frost kill off most of the insect pest
13、A quantitative risk assessment is needed for each quarantine insect pest to ensure quarantine security without sacrificing the transparency of international trade.
5、Thus, CMS lines are needed to improve insect pest resistance in hybrid rice.
21、Some crops have been genetically engineered to contain Bt, a bacterium that controls certain insect pests.
18、Your courses of study in this program will likely include insect physiology, insect behavior, livestock entomology, apiculture (the care of bee colonies), management of insect pests, etc.
1、insect pest deterrents
12、According to analysis of the reason, condition and character of forest disease and insect pest in Pingxiang City, the author put forward effective prevention and control countermeasures.
10、The prevalence of disease and insect pest is one of the factors, which restrict the yield in rape production.
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