Crops ›› 2020, Vol. 36 ›› Issue (4): 206-210.doi: 10.16035/j.issn.1001-7283.2020.04.030

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Effects of Strip-Planting of Cotton-Wheat on Cotton Aphid

Zhang Qian1(), Li Yaofa2, Wang Shulin1, Wang Yan1, Feng Guoyi1, Lin Yongzeng1, Liang Qinglong1, Lei Xiaopeng1, Qi Hong1()   

  1. 1Institute of Cotton, Hebei Academy of Agriculture and Forestry Sciences/Key Laboratory of Biology and Genetic Improvement of Cotton in Huanghuaihai Semiarid Area of Ministry of Agriculture and Rural Affairs, Shijiazhuang 050051, Hebei, China
    2Plant Protection Institute, Hebei Academy of Agriculture and Forestry Sciences, Baoding 071000, Hebei, China
  • Received:2019-12-17 Revised:2020-05-05 Online:2020-08-15 Published:2020-08-11
  • Contact: Qi Hong E-mail:zhq0022@163.com;qihong83@126.com

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Abstract:

In order to explore the effects of strip-planting of cotton-wheat on cotton aphid, the population number and damage of aphid at cotton seedling stage were studied. The results showed that the strip-planting mode of cotton-wheat could reduce the number and damage of aphids at cotton seedling stage. The numbers of alate and apterae aphid were significantly lower than conventional planting mode, the number were decreased by 70.4% and 84.8% respectively, the percentage of cotton plants attacked by aphids and the percentage of curly-leaf plants by aphids were decreased by 67.4% and 81.3% respectively. In cotton strips, the control effects of border rows on aphids was significantly better than middle rows, the number of alate and apterae aphid decreased by 43.7% and 54.3% respectively, and the percentages of cotton plants attacked by aphids and curly-leaf plants by aphids decreased by 52.4% and 84.6%, respectively.

Key words: Strip-planting, Cotton aphid, Cotton-wheat, Ecological regulation

Table 1

The number and damage of aphids of strip-planting and conventional planting"

种植模式
Planting mode		 蚜虫数量（头/100株）
Number of aphids per 100 plants		 有蚜株率
Percentage of
aphids plants		 卷叶株率
Percentage of
curly-leaf plants
有翅蚜Alate aphid 无翅蚜Apterae aphid
条带种植Strip-planting 11.5±0.7b 257.7±37.0b 22.5±2.8b 4.3±0.4b
常规种植Conventional planting 39.4±3.7a 1 695.4±144.5a 69.1±1.1a 23.1±3.4a

Fig.1

The number and damage of aphids of strip-planting and conventional planting at different growth stages Different lowercase letters indicate significant difference at 0.05 level, the same below"

Table 2

The number and damage of aphids of border rows and middle rows"

位置
Location		 蚜虫数量（头/100株）Number of aphids per 100 plants 有蚜株率
Percentage of aphids plants (%)		 卷叶株率
Percentage of curly-leaf plants (%)
有翅蚜Alate aphid 无翅蚜Apterae aphid
边行Border row 9.4±1.5b 226.3±13.9b 16.7±1.0b 1.1±0.6b
中间行Middle row 16.7±1.7a 495.0±106.9a 35.0±4.4a 7.2±0.6a

Fig.2

The number and damage of aphids of border and middle rows at different growth stages"

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