Distribuição espacial e amostragem sequencial da entomofauna associada ao feijoeiro Phaseolus vulgaris L

Abstract

The common bean, Phaseolus vulgaris L., is a highly nutritious and low-cost food for human consumption. There are few works in the literature that deal with the entomofauna associated with P. vulgaris and even more scarce those that deal with the spatial distribution and sequential sampling of insects with pest potential. In this context, the thesis presented below is an unpublished work. It is a baseline study of the entomofauna associated with the common bean plant P. vulgaris. by the beat cloth method. The objectives were to evaluate the entomofauna associated with 20 new bean genotypes and to correlate the interaction between the insects, using multivariate analysis; to evaluate the preference of D. speciosa and the stink bug complex for 20 new bean genotypes, analyze the population fluctuation of these insects in three different seasons, collect data about the spatial distribution model of the adults of D. speciosa and the stink bug complex, in the field, in P. vulgaris and to develop a sequential sampling plan based on the Sequential Probability Ratio Test (TSRP) that facilitates and enables the practice of sampling both D. speciosa and the stink bug complex. The present study presents new information of direct application to the producer. Sequential sampling plans were developed for Diabrotica speciosa (Germar, 1824) and for the stink bugs that occur more abundantly in common bean, treated as a complex. This information facilitates the management of insect pests in P. vulgaris, aiming at reducing production costs of this grain.