Journal article

Publication year: 1991

Pages: 464-470

Journal: Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz = Journal of plant diseases and protection

Volume number: 98

Issue number: 5

ISSN: 0340-8159

Publisher: Ulmer

Abstract: 

The fauna of the vegetation zone of winter wheat fields of an alternative, "bio-dynamic" farm and of two conventional (high input) in Hesse was compared. The samples of insects were obtained weekly from May to July by using a portable suction trap.

In six fields, 6614 thrips belonging to 18 species were caught. The number of thrips from the fields of the bio-dynamic" farm was nearly twice as high as that from the conventionally managed farms. Predaceous thrips, Aeolothrips intermedius, were very common in "bio-dynamic" fields but rare in conventional fields. The numeric relation between predacious thrips and phytophagous species as their prey was 1:20 in alternatively managed fields and 1:422 in high input fields.

The reason for the high numbers of predaceous thrips in the fields of the "bio-dynamic" farm was probably the presence of numerous weeds. The effects of predaceous on phytophagous thrips are discussed.

Harvard Citation style: PATRZICH, R. and KLUMPP, M. (1991) COMPARISON OF PHYTOPHAGOUS AND PREDATORY THRIPS (THYSANOPTERA) IN WINTER-WHEAT FIELDS IN HESSE WITH DIFFERENT SYSTEMS OF MANAGEMENT, Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz = Journal of plant diseases and protection, 98(5), pp. 464-470

APA Citation style: PATRZICH, R., & KLUMPP, M. (1991). COMPARISON OF PHYTOPHAGOUS AND PREDATORY THRIPS (THYSANOPTERA) IN WINTER-WHEAT FIELDS IN HESSE WITH DIFFERENT SYSTEMS OF MANAGEMENT. Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz = Journal of plant diseases and protection. 98(5), 464-470.