Bioproducts against diseases and pest in tomato production in cultivation facilities

S. Masheva, N. Valchev, V. Yankova

Abstract. Effectiveness of the botanical products for plant protection Timorex 66 EC and Timorex Gold against late blight (Phytophthora infestans) and early blight (Alternaria solani), of the products Pyros, Pyrethrum FS EC and NeemAzal T/S against greenhouse whitefly (Trialeurodes vaporariorum), tobacco thrips (Thrips tabaci) and twospotted spider mite (Tetranychus urticae) on tomato in cultivation facilities was studied in the period 2008-2010. Products included as a standard were: Ridomil Gold MZ 68 WG, Horus Top, Skore 250 EC, Vaztak new 100 EC, Mospilan 20 SP and Omit 57 Е. Timorex Gold 0,75 % demonstrates god effectiveness against late blight (68,66 %) and early blight (59,52 %). Pyros is described with good biological activity against greenhouse whitefly (against adults – 84,36 % and against larvae – 66,75 %). Phytopesticide Pyrethrum FS EC is with high effectiveness (89,29 %) against tobacco thrips while NeemAzal T/S was with good acaricide activity (92,57 %). In the laboratory tests that were conducted for determination of the secondary action of the botanical products was establishes that Timorex 66 EC, Timorex Gold and NeemAzal T/S are slightly toxic to the bioagent Encarsia formosa and they could be applied in the integrated and biological systems for vegetable production.

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