Monitoring of whiteflies and thrips on greenhouse cucurbit plants using yellow sticky traps in Al-Hasa district, Saudi Arabia | ||
| Journal of Pest Control and Environmental Sciences | ||
| Volume 10, Issue 1, 2002, Pages 1-12 PDF (252.98 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpces.2002.459571 | ||
| Author | ||
| A. M. Ajaln* | ||
| Department of Plant Protection, College of Agricultural and Food Sciences, King Faisal University, P.O. Box 55009, Hofuf, Al-Hasa 31982, Saudi Arabia | ||
| Abstract | ||
| The seasonal abundance of whiteflies Bemisia spp. and thrips Thrips spp. was monitored on cucurbit plants (cuculnber, squash, melon and watermelon) by using yellow sticky traps technique. Sticky traps were placed at three levels above ground surface 50, 100 and 150 cm. Whiteflies showed two peaks of infestation on cucurbit plants, the lowest being reported in June while the highest occurred in September. Sticky traps placed at 100 cm caught more adults of whiteflies, compared to those placed at 50 or 150 cm. For thrips adults three peaks of infestations were observed, the highest one was reported in April and the other two peaks were in September and November. Along the monitoring months, sticky traps placed at 100 cm captured more thrips adults than those placed at 50 or 150 cm. The data revealed that the yellow sticky traps were for monitoring whiteflies and thrips flight activities in greenhouses. Captured insects will reflect the size of their populations and will supply useful information to limit the size of insect problelms through their economic threshold and to help in taking the decision to introduce the different control methods. | ||
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