Susceptibility of Certain Stages of the Rice Weevil to a Methallyl Chloride Fumigant Formulation in Wheat of Various Moistures12

Autor:	John R. Pedersen
Rok vydání:	1960
Předmět:	Larva animal structures Ecology business.industry Sitophilus fungi Pest control Fumigation General Medicine Biology Pesticide biology.organism_classification Pupa Animal science Rice weevil Agronomy Insect Science Instar business
Zdroj:	Journal of Economic Entomology. 53:288-291
ISSN:	1938-291X 0022-0493
DOI:	10.1093/jee/53.2.288
Popis:	Adult rice weevils ( Sitophilus oryza (L.)) were fumigated with an 80-20 (by volume) formulation of carbon tetrachloride methallyl chloride in wheat at 11.0%, 12.5%, and 14.0% moistture for 48 hours at 80°. Eggs, first and third instar larvae, and pupae were fumigated in 12.5% and 14.0% wheat. Most of the insects killed by fumigation had died within 5 days. There was no apparent knock-down with subsequent recovery. LC50 values with upper and lower fiducial limits and b (slope) values with upper and lower fiducial limits were calculated for 10-day mortalities. LC90 values were estimated from plotted curves. LC50 order of susceptibility from least to greatest at 12.5% moisture was: third instar larvae
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1fa6ca079315be3276ef609283a3e359 https://doi.org/10.1093/jee/53.2.288 Zobrazit plný text záznamu