Advanced search
Start date
Betweenand

Diversity of edaphic predatory mites (Mesostigmata: gamasina) in sugar cane crops under organic and conventional planting system

Grant number: 19/21248-7
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): December 01, 2019
Effective date (End): November 30, 2020
Field of knowledge:Agronomical Sciences - Agronomy
Principal Investigator:Raphael de Campos Castilho
Grantee:Leticia Caroline Penteado Innocente
Home Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
Associated research grant:17/12004-1 - Edaphic mites: diversity, relationship with the microbiota and ecology in natural and cultivated areas in Brazil, with the preparation of databases and keys to identify selected groups, AP.BTA.TEM

Abstract

In Brazil, studies of the diversity and abundance of Mesostigmata predatory mites in the soil are incipient. Understanding the biodiversity of these organisms is an important aspect for the discovery of new species that have potential for use in biological control. In addition, it is important to verify the influence of crop management on the diversity of these organisms. Thus, the present study aims to survey the diversity of Mesostigmata mites, with emphasis on Gamasina, in conventional and organic sugarcane crops in the state of São Paulo for to compare the diversity and abundance of these organisms in these systems. For this, soil samples of four areas will be collected every two months for six months in sugarcane. Two areas with conventional system and two with organic system. In each area 16 random sampling points will be chosen. In the laboratory, the collected soil samples will be immediately placed in the modified Berlese-Tullgren equipment for mite extraction. The extracted material will be sorted and the Gamasina mites will be mounted on slides with Hoyer medium. These specimens will be grouped into morphospecies and identified to species level when possible. The mites obtained in this study will be deposited in the Insect and Mite Reference Collection of the Plant Protection Department of FCAV/UNESP and the Mite Reference Collection of Acarology Laboratory of the ESALQ/USP. In addition, the data of the identified species will be entered into the information system of the BIOTA-FAPESP program.