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The objectives of this study was identify the termite species, assess the relationship of the occurrence of nests with Tectona grandis (teak) and its possible damage caused by this association, being determined the type of spatial distribution of nests in the studying area. This work was conducted in the municipality of Porto Esperidião, State of Mato Grosso, Brazil, in the teak plantation with 581,27 ha. The nests were placed with a GPS (Global Positioning System), for further assessment of population distribution, according to the Morisita index. The nests were quantified in different altitudes classes. It was also evaluated the number of nests found in trees and regrowth in and out of trees, as well as the influence of these nests in tree growth. The termites found were identify as Cornitermes snyderi. The nests do not affect the growth in relation to the circumference at breast height of tree. The spatial distribution of termites in the planting is pooled, binomial negative. I was not observed damage in trees surrounded by nests. [ABSTRACT FROM AUTHOR]

Com o objetivo de controle do cupim-de-monte Cornitermes cumulans, o principal cupim invasor de pastagens naturais no Estado de São Paulo, foi instalado ensaio com 8 tratamentos e 10 repetições: A1 e A2 clorpirifós (600 ml CE 22,4%); B1 e B2 clorpirifós (1000 ml CE 22,4%); C1 e C2 endossulfan (600 ml CE 35%); D1 e D2 endossulfan (1000 ml CE 35%). Entre parêntesis estão as quantidades de produtos comerciais em 100 litros de água (um litro de calda por monte). A formulação à base de clorpirifós foi o "Dursban" e, a de endossulfan, foi o "Thiodan". Em A1, B1, C1 e D1, os montes foram destruídos 120 dias após a aplicação; em A2, B2, C2 e D2, aos 253 dias da aplicação. Não houve diferença significativa entre os tratamentos: todos foram eficientes.In order to control the mound-building termite Cornitermes cumulans, considered as the most important termite in natural pastures in the State of São Paulo, Brazil, an experimental field test with chemical insecticides was carried out. The test consisted of 8 treatments with 10 replications each: A1 and A2 chlorpyrifos (600 ml 22.4% EC); B1 and B2 chlorpyrifos (1000 ml 22.4% EC); C1 and C2 endosulfan (600 ml 35% EC); D1 and D2) endosulfan (1000 ml 35% EC). Between parenthesis are the quantities of the trade mark "Dursban" (chlorpyrifos) and "Thiodan" (endosulfan) in 100 liters of water (one liter of water per mound). In the treatments A1, B1, C1 and D1, evaluations were made 120 days after the product application, and in A2, B2, C2 and D2, after 253 days. There was no significant difference among treatments: all were efficient.