Population Dynamics of Whitefly and Thrips under Different Row Spacing and Plant Density Conditions in a Cotton Field of Punjab, Pakistan

文献类型： 外文期刊

第一作者： Alvi, Abid Mahmood

作者： Alvi, Abid Mahmood;Iqbal, Naeem;Shahid, Muhammad;Iqbal, Naeem;Iqbal, Javid;Ali, Kazam;Jaleel, Waqar;Jaleel, Waqar;Jaleel, Waqar;Khan, Hafiz Azhar Ali;Khan, Tiyyabah

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关键词： Bt cotton; Pest infestation; Plant density; Pest management; Population dynamics

期刊名称：PAKISTAN JOURNAL OF ZOOLOGY （ 影响因子：0.79； 五年影响因子：0.713 ）

ISSN： 0030-9923

年卷期： 2021 年 53 卷 2 期

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收录情况： SCI

摘要： In the current study, populations of whitefly (Bemisia tabaci) and thrips (Thrips tabaci) were observed in 2016 under three different conditions: 75 cm row to row spacing without mapiquate chloride (growth inhibitor), 30 cm row to row spacing without mapiquate chloride, and 30 cm row to row spacing with mapiquate chloride, using two cotton varieties (BS-15 and BS-70). The results indicated that the population of both sucking pests was more on variety BS-70 as compared to BS-15 cotton variety. Thrips and whitefly populations varied significantly in three row spacings (P<0.01) with the maximum population recorded in line spacing of 30 cm without mapiquate chloride (9.12-11.15 thrips/leaf and 9.18-7.83 whitefly/leaf), followed by line spacing of 75 cm without mapiquate chloride (8.65-9.12 thrips/ leaf and 5.97-5.06 whitefly/leaf) and 30 cm with mapiquate chloride (4.57-5.41 thrips/leaf and 2.64-2.88 whitefly/leaf). The peak population was observed on June 5, 2016 for thrips (15.46-27.53 nymphs and adults/leaf) and August 29, 2016 for whitefly (11.40-20.80 nymph and adults/leaf).

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