Development of the Beet Armyworm and Its Parasite Chelonus texanus in Relation to Temperature1

Autor:	George D. Butler
Rok vydání:	1966
Předmět:	Larva Ecology biology Hatching General Medicine biology.organism_classification Pupa Animal science Beet armyworm Insect Science Exigua Botany Parasite hosting Asparagus Adult stage
Zdroj:	Journal of Economic Entomology. 59:1324-1327
ISSN:	1938-291X 0022-0493
Popis:	Individual beet armyworms, Spodoptera exigua (Hubner), were reared on lima bean-agar medium in temperature cabinets. Regression equations are: for the number of days for the egg stage, ŷ = -0.3472 + 0.0083 X; from the first-instar larva to the prepupal stage, ŷ = -0.0921 + 0.00203 X; to the pupal stage,) ŷ = -0.1032 + 0.00214 X; and to the adult stage, ŷ = -0.0716 + 0.00147 X, where ŷ is the reciprocal of days and X is the temperature (°F). The rate of development was the same at constant as at fluctuating temperatures. Comparisons indicated a rate of development similar to published life-history records of beet armyworms in Florida asparagus ferneries during 1932–33. Chelonus texanus Cresson developed at a similar rate to that of S. exigua . The regression equation for the number of days to the death cell from the hatching of the S. exigua egg is ŷ= -0.1385 + 0.00283 X, and to the adult stage is ŷ = -0.0841 + 0.00164 X.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a2873518661a48413347fa7d54eae1ba https://doi.org/10.1093/jee/59.6.1324 Zobrazit plný text záznamu