bollworm造句
1 The changes of susceptibility of cotton bollworm larvae to phoxim, malathion, methomyl, deltamethrin and p-cypermethrin was significantly difference with treatments of three anticholinesterase agents.
2 Sahai said Monsanto's conceding to pink bollworm resistance "sets the stage" for the introduction of the company's second-generation Bt cotton 'Bollgard II' that contains two Bt toxin genes.
3 The effect of plant allelochemicals on cotton bollworm susceptibility to insecticides may be determined by the integrated results of the detoxifying enzymes and AChE changes.
4 In china, it is advanced on transgenic bollworm resistant cotton in the world.
5 The pink bollworm, whose larvae winter in the seeds of cotton in the storerooms, may cause a 20 per cent loss in ginned cotton.
6 Cotton bollworm , Helicoverpa armigera ( Hubner ) outbreaks in Jiangxi almost every year since 1993.
7 Cotton bollworm (Helicoverpa armigera Hubner) is one of the three major pests in the cotton. Its occurrence and disaster restrict production and scale of Shaanxi cotton district seriously.
8 The cotton industry was virtually destroyed in 1968 when the bollworm and tobacco budworm became resistant to all available insecticides.
9 According to our data, it is evident that the application of N fertilizer would lead to the increase of the contents of the soil, the cotton plant and the cotton bollworm.
10 And while insecticide use has decreased since the introduction of Bt cotton, a new insect — mirid — has gradually replaced bollworm to become the main cotton pest.
11 Adult feeding may be an important factor in population ecology of the cotton bollworm , feeding during the early stage has an especially important role in female fitness.
12 Planting resistant cotton varieties, agricultural and chemical control are important measures of integrated management of cotton bollworm .
13 The soluble powder:polythiocycloalkanes, has good effective on the control of pest insects such as two-spotted spider mite, cotton bollworm and citrus red spider mite ect.
14 Based on the above results and climate information, the overwintering areas of cotton bollworm in Xinjiang Region is analyzed in this paper.
15 The controlling measures are put forward as agricultural control, using cotton bollworm resistance varieties, improving the technique of chemical control.
16 Last October, scientists field-tested a cotton pest called the pink bollworm moth, carrying a test gene for a glowing jellyfish protein.
17 This paper presents a computer simulation model for egg and larvae stages of cotton bollworm armigera.
18 These results suggest that both Mixed-function oxidase and esterase play an important role in cotton bollworm resistance to monocrotophos .
19 Some opinions on drug - resistance and comprehensive treatment of Bollworm in Dali County were put forward.
20 All 3 varieties in the trail of pest resistance expressed high resistibility to Pink bollworm.
21 It can be concluded that irradiated sterile insect technique is feasible for integrated controlling cotton bollworm.
22 And the other 47% individuals had no reaction. It implies that the decreased nerve sensitivity is an important pyrethroid resistance mechanism of cotton bollworm.
23 The dynamical effects of the 2nd and 3rd generations of cotton bollworm on the growth and development of cotton plant can be given separately and compositely.
24 The results showed that the resistance ratios to endosulfan and deltamethrin were 13 and 66 folds in Xinjiang cotton bollworm after selection.
25 By adopting some preventive measures, F2 plants can prevent from cotton bollworm although F2 is the generation segregation of resistances in transgenic bollworm-resistant hybrid cotton.
26 A comparison between the tolerance capacities of these two species indicates that the bollworm is more tolerant than the tobacco budworm.
27 The role of bioassay method in study of relationship between insect and plant volatile as well as the biological significance of attraction of Pterocarya stenoptera to cotton bollworm were discussed.
28 The results showed that the specific activity of GSTs was lowest in the egg stage and highest in the 5th-6th instars of the cotton bollworm.
29 The hydrolase and mixed function oxidase might be the important enzymes to cause the high resistance of cotton bollworm todeltamethrin.
30 The cotton is genetically engineered to produce Bt toxin, which kills pink bollworm, a serious cotton pest.
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