Control of Sorghum halepense (L.) species in western part of Romania.

Sorghum holepense is an extremely wide spread species, being met in many European, Asian, American and African countries and covering approximately 1/3 of the land cultivated with fields crops, grapevine, fruit trees and vegetables. In Romania, Sorghum halepense is present in almost all the country, invading in hoed-plants ad vegetable crops as well as grapevine and fruit-tree plantations. The losses caused by Sorghum halepense are enormous; in case of maize and sugar beet crops, these losses reach and extremely high rate of 30-70%.

Natural enemies in control of invasive species Diabrotica virgifera Virgifera from maize crops.

The invasive Diabrotico virgifera virgifera Le Conte (western corn rootworm) species has become a very important pest of maize growing areas from Europe. Incidence of this pest in Europe and Romania attract the specialist's attention and European organisms regarding substantial changes which save the yield. Current trends in control regard the using natural enemies' because non-pollutants effects.