OPTIMIZING THE RODENTICIDE APPLICATION IN VEGETABLE FIELDS

An inventory of species carried out for the total amount of field rodents during the period of 1994 – 1996 in vegetable fields (string beans 100 ha, potato 100 ha, peas 100 ha, cabbage and cauliflower 20 ha, beet 10 ha, tomato 2 ha, pepper 2 ha and cucumber 2 ha) at the PK "7. July", Surcin determined that the Microtus arvalis Pass (85%) prevailed compared to the Apodemus sylvaticus (13%) and the Cricetus cricetus (2%).

During 1994 and 1995 the rodent number reached a degree varying from high to very high – 500 to 200 a.h./ha, but decreased to an amount of 10 to 50 a.h/ha in 1996.

In order to protect vegetables from rodents and to compare the efficiency and ecotoxicological suitability, baits based on the following products were made: EKOROD A (alfachlorohydrin), KLERAT (brodifacum), BARAKI (difetialon), MURISAN A (cumatetralil) and ZINC – PHOSPHIDE. The experimental plot for each product was 1000 m² each, and baits of prepared products were applied by being put directly into the holes.

In order to obtain an efficiency of 88 – 99% during the period of 1994 to 1995 with the above mentioned rodent number, it was necessary to apply 6 – 7 kg/ha of ZINC PHOSPHIDE bait, 4 – 5 kg/ha KLERAT basis bait, 7 – 8 kg/ha BARAKI bait and 8 – 10 kg/ha MURSAN A and EKOROD A bait.

With a considerable low number of rodents in 1996, 2 – 3 kg/ha ZINC PHOSPHIDE, 3 – 4 kg/ha KLERAT basis bait, 5 – 7 kg/ha BARAKI and 6 – 8 kg/ha MURISAN A and EKOROD A baits were applied.

I Balkan Symposium On Vegetables and Potatoes

M. Vukša, N. Dimic, P. Peric, S. Krnjajic, A. Cvetkovic, J. Šešic

Microtus arvalis, Apodemus sylvaticus, Cricetus cricetus, protection efficiency

https://doi.org/10.17660/ActaHortic.1997.462.73