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Tri-Tek (Petroleum Horticultural Oil) and Beauveria bassiana: Use in Eradication Strategies for Bemisia tabaci Mediterranean Species in UK Glasshouses

The Food and Environment Research Agency, Sand Hutton, York YO41 1LZ, UK
Author to whom correspondence should be addressed.
Academic Editor: Brian T. Forschler
Insects 2015, 6(1), 133-140;
Received: 26 November 2014 / Accepted: 9 February 2015 / Published: 12 February 2015
(This article belongs to the Special Issue Pest Control in Glasshouses)
PDF [412 KB, uploaded 12 February 2015]


The sweetpotato whitefly Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) is a pest of global importance on both outdoor and glasshouse crops. To date, B. tabaci has not become established in the UK. 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. Mediterranean species is now the most prevalent Bemisia species entering the UK. Increasing neonicotinoid resistance is becoming increasingly widespread and problematic with this species. As a result, this continues to pose problems for eradication strategies. The current study investigates the efficacy of Tri-Tek (a petroleum horticultural oil awaiting UK registration) and the fungus Beauveria bassiana to act as control agents against Mediterranean species in UK glasshouses. Tri-Tek provided 100% egg mortality compared to 74% for B. bassiana. When tested against second instar larvae, mortalities of 69% and 65% respectively were achieved. Both products can be successfully “tank-mixed”. A tank-mix application provided 95.5% mortality of second instar larvae under glasshouse conditions. The potential integration of both products into current Bemisia eradication strategies in UK glasshouses is discussed. View Full-Text
Keywords: Bemisia tabaci; chemical; entomopathogenic fungi; eradication Bemisia tabaci; chemical; entomopathogenic fungi; eradication

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Cuthbertson, A.G.S.; Collins, D.A. Tri-Tek (Petroleum Horticultural Oil) and Beauveria bassiana: Use in Eradication Strategies for Bemisia tabaci Mediterranean Species in UK Glasshouses. Insects 2015, 6, 133-140.

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