Varietal Response of Cotton (Gossypium hirsutum L.) against Different Sucking Insect Pests
Varietal Response of Cotton (Gossypium hirsutum L.) against Different Sucking Insect Pests
Muhammad Ihsan Ullah1, Muhammad Hasnain2*, Zaib Un Nisa1, Saeed Ahmad1, Javeed Shabbir Dar3, Naeem Arshad Mann4, Asifa Hameed5, Muhammad Tauseef1, Imran Ali2, Shamim Akhtar2, Abdul Ghaffar2 and Muhammad Akram1
ABSTRACT
Nine cotton (Gossypium hirsutum L.) varieties were tested for resistance against whiteflies (Bemisia tabaci), jassid (Amrasca biguttula biguttila), and thrips (Thrips tabaci) at the Cotton Research Institute, Multan. This study investigates the population dynamics of sucking insect pests cross different cotton varieties during the months of July, August, and September. Significant variations in pest populations were observed, with the peak infestations exceeding the Economic Threshold Level (ETL). In September, the highest whitefly population was recorded on FH-1184 (5.20/leaf), while the lowest was noted on MNH-Sultan and CKC-6, at 3.67 and 3.69/leaf, respectively. August also revealed elevated jassid infestations, notably on FH-1184 and MNH-1082 (4.24/leaf). In contrast, thrips populations peaked on CKC-6 (1.17/leaf) while the lowest was recorded on MNH-Shan (0.51/leaf). Results indicate that both July and August were conducive to the growth of whitefly and jassid populations, contrasting with findings by Swidrak et al. (2013), which identified a July peak for jassids. The study enhances understanding of pest resistance among cotton varieties, with MNH-789 exhibiting the highest tolerance to jassids, whereas CKC-6 showed notable resistance to thrips and whitefly. These findings contribute valuable insights into host plant resistance against sucking pests, highlighting the importance of genotype selection in pest management strategies.
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