1 The dynamics of the soybean aphid Aphis glycines, fed on glabrous soybean and the pubescent soybean plant, was observed in the laboratory.

2 The results showed that the quantity of Aphis gossypii Glover in WSA cotton field was significantly lower than that in other two cotton fields.

3 They had strong pursuing and control effect to Aphis citricola Van der Goot and Tetranychus viennensis Zacher from time dimension.

4 The population dynamic of the cotton aphids, Aphis gossypii Glover, under varying inoculated densities by 2,4,8,16 and 32 aphids per plant, was observed in the gauze covering cage in June, 1998.

5 Aces APHIS offers some suggestions of ways to keep away predators.

6 If is APHIS offers some suggestions aways to keep away predators . A project.

7 An investigation was made in community dynamics of Aphis gossypii and its predatory enemy on Hibiscus Syracuse plants.

8 Development period of the cotton aphid, Aphis gossypii Glover was observed in different cotton varieties with resistance to insect pests by inoculating the insect pest on cotton leave in laboratory.

9 The spatial construction and distribution of Aphis gossypii and Propylaca japonica at different period were investigated with geostatistics.

10 It has obvious effect to wheat or vegetable aphis, and no harm to and beneficial insect.

11 APHIS offers some suggestions of ways to keep away predators.

12 The Aphis gossypii Glover is one of the main pests of cotton,[www.Sentencedict.com] cucurbits and other crops.

13 The Wildlife Services program is part of the Animal and Plant Health Inspection Service, or APHIS.

14 The Experiments were carried out to study the relationship dynamics of Aphis craccivora population and Vicia faba between physiological stress on the basis of plant-insect experimental system.

15 The effect of symbiont on growth and reproduction of the black bean aphid, Aphis craccivora KochObtaining aposymbiotic aphids is key to study the relationship between the aphid and Buchnera.

16 Table 1 Contact toxicity of different solvent extracts from dried powder of Portulaca oleracea L. against Aphis gossypii Glover.

17 Through the research, confirmed that PPA can confer strong resistance to Homoptera insects, such as Aphis craccivora.

18 In this paper, an attempt to use the reverse passive haemagglutination assay (RPHA) to identify the predators of cotton aphid Aphis gossypii Glover was described.

19 Compared with pirimicarb 50% WP, it had much markable action of synergism on Rhopatosiphum pseudobrassicae and Aphis spireaccla, and the synergic ratios were 411.55 and 850.39 respectively.