Abstract
The sweetpotato whitefly Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) continues to be a serious threat to crops worldwide. The UK holds Protected Zone status against this pest and, as a result, B. tabaci entering on plant material is subjected to a policy of eradication. Both B and Q Bemisia biotypes are now regularly intercepted entering the UK. With increasing reports of neonicotinoid resistance in both these biotypes, it is becoming more problematic to control/eradicate. Therefore, alternative means of control are necessary. Entomopathogenic fungi (Lecanicilllium muscarium and Beauveria bassiana) offer much potential as control agents of B. tabaci within eradication programmes in the UK.
Highlights
The sweetpotato whitefly, Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) (Figure 1) is a major pest of economically important crops worldwide [1]
Within the United Kingdom (UK), B. tabaci remains a notifiable pest subject to a policy of eradication if found on propagators premises, plants moving in trade, and containment/eradication if outbreaks occur at nurseries [3,4]
Bemisia tabaci B (Middle East-Asia Minor 1 species) to Bemisia tabaci Q (Mediterranean species) biotype being regularly intercepted on plant material entering the UK [2,5,6]
Summary
The sweetpotato whitefly, Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) (Figure 1) is a major pest of economically important crops worldwide [1]. Bemisia tabaci damages crops by feeding on phloem sap and the large amounts of sticky honeydew produced can lower the rate of leaf photosynthesis. This whitefly is a vector of many plant viruses [2]. Bemisia tabaci has been intercepted annually on imported plant material since 1987 [4]. The primary concern is that the whitefly imported on ornamental plants such as poinsettia (Euphorbia pulcherrima) can transfer and infect tomatoes with Tomato yellow leaf curl. Bemisia tabaci B (Middle East-Asia Minor 1 species) to Bemisia tabaci Q (Mediterranean species) biotype being regularly intercepted on plant material entering the UK [2,5,6]
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