081a3bIoan Gontariu1, Ioan-Catalin Enea, Amelia Buculei, Ioana Rebenciuc

Faculty of Food Engineering, Stefan cel Mare University, Street. Universitatii no. 13, 720229, Suceava, Romania

Agricultural Research and Development Station of Suceava, B-dul 1 Decembrie 1918, 15, Suceava, Romania

Faculty of Food Engineering, Stefan cel Mare University, Street. Universitatii no. 13, 720229, Suceava, Romania

Faculty of Food Engineering, Stefan cel Mare University, Street. Universitatii no. 13, 720229, Suceava, Romania

Key words: Soil surveys, biological reserve, low temperatures, losses.

Abstrac

In our experiment we observe the autumn and spring surveys. After these surveys we can determine the way in which has evolved the pest during winter and we can quantify the biological reserve from the soil. There were made some surveys on the lots cultivated with corn, barley, autumn wheat and spring mash and potato cultures. The results of the surveys show that in the analyzed winters only 29% were registered significant losses of the hibernate adults.

colorado_potato_beetleThe homogeneity of the values could suggest that during the less cold winters, the biological reserve could be diminished with approximately half from the number of the hibernated adults from the potato cultivated field.

Get the original articles in Source: Volume 2, Number 1, January 2012 – IJAAR

Published By: International Journal of Agronomy and Agricultural Research (IJAAR)

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