%0 Journal Article
%T Exig¨ºncias T¨¦rmicas de Bemisia tabaci (Genn.) Bi¨®tipo B (Hemiptera: Aleyrodidae)
%A ALBERGARIA
%A NUNO M.M.S.
%A CIVIDANES
%A FRANCISCO J.
%J Neotropical Entomology
%D 2002
%I Scientific Electronic Library Online
%R 10.1590/S1519-566X2002000300003
%X the development (egg-adult) of bemisia tabaci (genn.) b-biotype (=bemisia argentifolii, bellows & perring), was studied in field conditions and in incubators at constant temperatures (15, 20, 25, 30 and 35¡À1oc), using soybean, glycine max (l.) merrill, msoy 8001, as host plant. the temperatures threshold (tb) and the thermal constant (k) for egg, nymph and life cycle (egg-adult) were 11.1oc / 98.8 degree-days; 6.8oc / 383.8 degree-days and 8.3oc / 472.6 degree-days, respectively. at the temperatures of 15oc and 35oc, insect viability was smaller. in the field, 70% of the adults emerged after 413,2 degree-day were accumulated. the degree-day pattern used was adequate for the previewing bemisia tabaci b-biotype adult occurrence in field, and it can also be used to determine the number of generations in different areas of the country.
%K bemisia argentifolii
%K whitefly
%K degree-day
%K temperature
%K glycine max
%K soybean.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1519-566X2002000300003&lng=en&nrm=iso&tlng=en