Diversidade e sazonalidade de ácaros (Acari) em seringal (Hevea brasiliensis, Muell. Arg.) no Noroeste do Estado de São Paulo

Abstract

Diversity and Seasonal Occurrence of Mites (Acari) in a Rubber Tree Crop (Hevea brasiliensis, Muell. Arg.) in Northwestern São Paulo, Brazil ABSTRACT -Brazilian southeastern region has soil and climate conditions suitable for the growing of rubber trees, and most part of national yield arises from São Paulo State. The aims proposed for this work were to determine the diversity, the richness and the seasonal occurrence of mites found in a rubber tree crop in a triennial survey with monthly samplings, as well as to estimate the populational density of the major phytophagous species. This study found 74,407 mites from 26 species belonging to 10 families. The phytophagous and predators represented 95.4% and 3

Mites (Arachnida: Acari) collected on rubber trees Hevea brasiliensis (Willd. ex A.Juss.) Müll.Arg. in Santana, Amapá state, Brazil

“…After the year 2000, T. heveae was reported a number of times as a pest of rubber trees (Pontier et al, 2000;Ferla and Moraes, 2002;Hernandes and Feres 2006a, b;Vis et al, 2006;Daud and Feres, 2007). In São Paulo, T. heveae is usually very numerous (Feres et al, 2002;Bellini et al, 2005;Hernandes and Feres, 2006a;Vis et al, 2006). This species inhabits mainly the abaxial surface of leaves and causes bronzing followed by premature leaf drop (Moraes and Flechtmann, 2008).…”

“…It has therefore received increasing attention in recent decades, given that its usual cultivation over extended areas as a monocrop favours the appearance of pest species. This makes it highly important to study the mite fauna of rubber crops (Feres, 2000;Hernandes and Feres, 2006a). Studies of this nature may lead to the discovery of potential pest species and also their natural enemies, generating data to support the development of integrated pest management programmes specifically designed for rubber tree plantations (Hernandes and Feres, 2006a).…”

“…Two species of phytophagous mites are considered to be severe pests in the mid-western and southeastern regions of Brazil: Calacarus heveae Feres (Eriophyidae), which has been causing significant leaf drop and a consequent decline in latex yield (Vieira and Gomes, 1999;Feres, 2000;Hernandes and Feres, 2006a); and Tenuipalpus heveae Baker (Tenuipalpidae), which causes bronzing and premature leaf drop, as well as a significant decline in latex production (Pontier et al, 2000;Bellini et al, 2005).…”

Redução na produção de látex da seringueira provocada pela infestação de ácaros

“…Esses ácaros têm sido registrados na cultura em elevados níveis populacionais, principalmente no período de fevereiro a junho (Vieira & Gomes, 1999;Hernandes & Feres, 2006;Vis et al, 2006). O ataque das duas espécies provoca amarelecimento progressivo das folhas e posteriormente o desfolhamento das plantas (Vieira & Gomes, 2003) antes do período normal de senescência.…”

Biological cycle of Tenuipalpus heveae Baker (Acari, Tenuipalpidae) on leaflets of three rubber tree clones

“…This species goes through two nymphal stages before reaching adulthood, and the females had mean life expectancy of 28.5 days when reared on the clone PB 260 . Feres et al (2002), Bellini et al (2005), Hernandes & Feres (2006a) and Vis et al (2006), reported T. heveae as one the most abundant phytophagous mites on rubber tree crops in São Paulo State. Heavy infestations have also been registered (J. F. C. Benesi pers.…”