Resumo

MAMPRIM, Ana Paula et al. Effect of phytosanitary products on biological parameters of Beauveria bassiana (Bals.) Vuill. (Hypocreales: Cordycipitaceae). Rev. Protección Veg. [online]. 2014, vol.29, n.2, pp. 128-136. ISSN 1010-2752.

This study was aimed at evaluating the effect of different commercial pesticides, the aqueous and alcoholic extracts of several plants, and basidiocarps of Pycnoporus sanguineus L. on Beauveria bassiana Bals. Vuill. The commercial pesticides studied were Agro-mós, Agro-fos, Bion, Biogermex, Citronella oíl, Forth, Pironim, Bordeaux mixture, Planta Clean, and Sulphur-lime mixture, at the concentration recommended in the product labels (RC), the half of this concentration (1/2 CR), and the two-fold concentration (2 CR). The plant extracts were from Rosmarinus officinalis L., Cymbopogon citratus Stapf, C. winterianus Jowitt, Laurus nobilis L., Azadirachta indica A. Juss, Ricinus communis L., Melia azedarach L., Corymbia citriodora Hook, Ruta graveolens L., Curcuma longa L., Cinnamomum zeylanicum Blume) All the extracts and the basidiocarps of P. sanguineus were used at a 10% concentration. All the products were sprayed over B. bassiana previously inoculated to the culture medium (BDA). The parameters evaluated were germination, CFU, vegetative growth, and conidia production. Despite the deleterious effect of the commercial phytosanitary products on some of the parameters, they were compatible with B. bassiana, the same as the plant extracts were. However, the combined use or subsequent applications of the products here tested must be avoided before the 48 hours of B. bassiana application.

Palavras-chave : entomopathogenic fungi; compatibility; plant extracts; phytosanitary products.

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