Effect of natural pesticides and plant extracts on biological parameters of Metarhizium anisopliae (Metsch.) Sorok
DOI:
https://doi.org/10.5433/1679-0359.2013v34n4p1451Keywords:
Entomopathogenic fungi, Compatibility, Alternative products.Abstract
This study was carried out aiming to evaluate the effect and compatibility of vegetal and Pycnoporus sanguineus basidiocarps extracts and alternative products on biological parameters of Metarhizium anisopliae fungus. Extracts (solution in water 10%) and natural products (AR = average field recommendation; 0.5 AR and 2.0 AR) are applied on PDA culture media surface previously inoculated with fungi conidia. The effect of the treatment on conidia germination, vegetative growth and conidiogenesis was compared. Most alternative products were compatible to the fungus, and only Bordeaux mixture AR and 2.0 AR were moderately toxic to M. anisopliae. Although some significativally negative effect there were observed on conidial viability (reduction of 50 to 80% by alcoholic extracts), all extracts were compatible. This point to the necessity to be careful with application, avoiding mixtures or subsequent use of products less than 48 hours after fungi application.
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