Thrips (Thysanoptera) species associated with wheat and barley in Golestan province, Iran

Fields of winter wheat and barley were sampled during two years (November to June 1996-1998) in Golestan province to determine the occurrence, frequency and distribution of thrips species. A total of 32 species belonging to 3 families and 16 genera were found. Haplothrips tritici (Kurdjumov) was the dominant species accounting for 70.2% and 55.7% of identified individuals in wheat and barley, respectively. Sitothrips arabicus Priesner was the second most abundant species, comprising 13.5% and 20.1% in wheat and barley, respectively. Regression analysis showed a non-linear relation (y = 42.65 + 0.33x â 0.0002x2) between altitude (x) and population density of H. tritici (y) on wheat. Locality and date of collection, host(s) and distribution data for each species are given

An annotated checklist of the thrips of Israel (Thysanoptera)

One hundred and fifty-seven species of Thysanoptera are recorded from Is­rael, including 32 newly recorded species. A bibliography on this thrips fauna is provided. The thrips in Israel comprise two groups: the native and the intro­duced species. The native species mainly comprise typical Mediterranean ele­ments; whereas the introduced species mainly comprise agricultural pests

A thrips as vector of the "supersprouting" fungus disease in Guaraná plants of the Central Amazon

Liothrips adisi (Thysanoptera, Insecta) was found to be the vector of Fusarium decemcellulare, causal agent of supersprouting in the guaraná species Paulinia cupana var. sorbilis. Cutting of infested plant parts and biological control of thrips by two species of ants are proposed. Improvement of P. cupara against insect attacks by grafting with P. rugosa and by genetic alteration is suggested