Уточнить поиск
Результаты 1-2 из 2
Study of pest control by wild yam using
2006
Pattamaporn Chaiyapho, Phetchabun Rajabhat University, Phetchabun (Thailand)
Spread of thrips on winter cereals in Lithuania
2002
Smatas, R. (Lithuanian Inst. of Agriculture, Akademija, Kedainio reg. (Lithuania))
The spread of thrips was observed in winter rye, wheat and triticale crops during the growing season of 2001 at the Lithuanian Institute of Agriculture in Dotnuva. Thrips started to spread in winter cereals of the end of tilling - beginning of stem elongation stage (DC 29-30). In winter rye and triticale the spread of thrips was similar. There were two well-defined peaks of thrips occurrence. The highest incidence of thrips was on winter rye. There were 100% infested stems and 15.4 thrips per infested stem in rye, 90% infested stems and 6.9 thrips per infested stem in triticale and 84% infested stems and 2.9 thrips per infested stem in wheat.
Показать больше [+] Меньше [-]