Effect of sweetpotato whitefly, Bemisia tabaci (Homoptera: Aleyrodidae) infestation on eggplant (Solanum melongena L.) leaf

Abstract

The nature of damage of sweetpotato whiteXy, Bemisia tabaci (Gennadius) B biotype was investigated at the vegetative stage on eggplant (Solanum melongena L., family Solanasae, variety Baiyu) under laboratory conditions (temperature 25 § 1°C, RH 70 § 10% and photoperiod 12 h L:12 h D). The investigations were carried out after completing one generation of whiteXy on the basis of morphology, physiology and anatomy of eggplant leaf. SigniWcant diVerences were observed on three morphological parameters-leaf area, leaf fresh weight, and leaf dry weight. The reduction percentages of these three parameters were 26.6, 21.8 and 19.27%, respectively. SigniWcant diVerences were also observed on two physiological parameters-chlorophyll content and rate of photosynthesis. The reduction percentages of these two parameters were 9.7 and 65.9%, respectively. There were no damaged tissue observed in the epidermis and mesophyll, but there were some damage tissue observed in the vascular bundle of infested leaf. There were no damaged vascular bundles observed in the control leaves. The non-damaged vascular bundles contained both xylem and phloem; while some damaged vascular bundles contained either xylem or phloem. Associated with the non-damaged vascular bundles on whiteXy infested leaves were two settled whiteXy nymphs apparently deriving nutrition from phloem sap. After one generation of whiteXy infestation, the number of damaged and non-damaged vascular bundles of eggplant leaf was signiWcantly diVerent.

Change in the Physiological Aspects of Soybean Caused by Infestation by Bemisia tabaci MEAM1

“…Studies have revealed that whitefly infestations can deplete the energy reserves of plants, diminish primary production, and exert direct phytotoxic effects [15]. Whitefly infestations have been shown to reduce chlorophyll levels in various plant species, including tomato (Solanum lycopersicum), zucchini (Cucurbita pepo), eggplant (Solanum melongena), and soybean (G. max) [15][16][17][18].…”

Role of etofenprox nanoformulation in suppression of the silver whitefly, Bemisia tabaci and its residue in eggplant fruits

“…Silver whitefly, Bemisia tabaci (Gennadius) (Hemiptera : Aleyrodidae) is considered to be one of the major pests on eggplant, Solanum melongena (Solanales : Solanaceae). This pest can infest eggplant leaves and reduce eggplant yield (Touhidul and Shunxiang 2009). It is primarily found sucking the sap from the undersides of leaves and covering them with sticky honeydew.…”

Endophytic Isolates of Cordyceps fumosorosea to Enhance the Growth of Solanum melongena and Reduce the Survival of Whitefly (Bemisia tabaci)

“…Bemisia tabaci is considered to be one of the most destructive pests of eggplant [14]. Islam et al [15] showed that B. tabaci infestation caused reduction in the leaf area (26.6%), leaf fresh weight (21.8%), and leaf dry weight (19.27%) of eggplant when compared to non-infested plants. Their study also reported a 9.7% reduction in chloprophyll content and a 65.9% reduction in the rate of photosynthesis in response to whitefly infestation when compared with the control.…”