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izvor podataka: crosbi !

Population dynamics and sex ratio of adult forms of stem mining weevils in Croatia (CROSBI ID 600691)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Juran, Ivan ; Gotlin Čuljak, Tanja ; Grubišić, Dinka Population dynamics and sex ratio of adult forms of stem mining weevils in Croatia. 2013

Podaci o odgovornosti

Juran, Ivan ; Gotlin Čuljak, Tanja ; Grubišić, Dinka

engleski

Population dynamics and sex ratio of adult forms of stem mining weevils in Croatia

In oilseed rape two stem weevil species occur, the cabbage stem weevil (Ceutorhynchus pallidactylus Marsham, 1802) and the rape stem weevil (C. napi Gyllenhal, 1837). Both are among the most important oilseed rape pests that appear in spring. The monitoring of appearance of stem mining weevils was conducted in period from 2010 to 2012. Four yellow water traps were set up in the field at the beginning of leaf development (BBCH 12). Samples were collected once a week until harvest. According to morphological marks on the legs, the sexes were determined. The first peak of the flight of cabbage stem weevil usually occurs in February and both sexes immigrate at the same time but in different proportions. Males and females of the rape stem weevil start to immigrate two to three weeks later in the spring and in lower abundance compared to the cabbage stem weevil. As a consequence of the different time of appearance and sex ratio, two insecticide applications are necessary for their successful control.

oilseed rape; stem mining weevils; population dynamic; sex ratio

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o prilogu

2013.

objavljeno

Podaci o matičnoj publikaciji

Podaci o skupu

IOBC-Working Group Integrated Control in Oilseed Crops

predavanje

08.10.2013-10.10.2013

Belvaux, Luksemburg

Povezanost rada

Poljoprivreda (agronomija)