11. The use of resistant varieties is another way some farmers control virus spread. 12. You also could rotate crops, grow resistant varieties , or plant to avoid peak infestations. 13. Most varieties prefer partial to full shade, although sun-resistant varieties are now in cultivation. 14. Yields increased 9 % for herbicide tolerance and 25 % for insect resistant varieties . 15. According to integrated pest management, pest resistant varieties are cultivated. 16. A final means of control is selection for resistant varieties . 17. Therefore, the problem is not seen in conventional non-resistant varieties . 18. This is the first resistant variety of winter wheat. 19. Thus, it was concluded that there are some potential resistant varieties available in this area. 20. In response to the climate, farmers have relied on quick-ripening and frost-resistant varieties of crops.
