The behavior of Three Rice Varieties against Steneotarsonemus spinki Smiley in Vertientes, Camagüey

Abstract

Context: In Cuba, the proliferation and spread of rice acarid Steneotarsonemus spinki Smiley, is one of the main hindrances to rice productivity growth. Although integrated management is performed in the municipality of Vertientes, the acarid causes yield losses accounting for 15-20%. Aim: To determine the incidence of acarid S. spinki and the agro-productive behavior of rice varieties IA Cuba- 31, J-104, and Prosequisa -4. Methods: Two evaluations were made to determine the presence of the pest in the crop. Besides, farming and industrial parameters were measured. The data collected were analyzed through simple analysis of variance, using SPSS, version 11.5.1, for Windows. Results: The results show that variety Prosequisa 4 withstood the lowest incidence of the acarid, being the crop variety with the highest farming and industrial yields, followed by the IA Cuba 31. Conclusions: This study recommends the following varieties for inclusion in the varietal policy for large and small-scale rice growers: Prosequisa -4 and IA Cuba 31.