Effect of pollutant dose on the response of Mexican bean beetle (Coleoptea: Coccinellidae) to SO/sub 2/-induced changes in soybean

Journal Article · Sun Dec 01 04:00:00 EST 1985 · Environ. Entomol.; (United States)

OSTI ID:6984880

Hughes, P R; Chiment, J J; Dickie, A I

Larvae of the Mexican bean beetle, Epilachna varivestis Mulsant, grew larger when fed on soybean foliage fumigated for 24 h with SO/sub 2/ at concentrations of 131 to 1834 ..mu..g m/sup -3/ than when fed on nonfumigated leaves. Relative weight gain was not linear against SO/sub 2/ concentration in the range sampled; it was greatest when leaves were fumigated with ca. 786 ..mu..g m/sup -3/ and less pronounced at either higher or lower concentrations. Smaller relative weight gains, also having a maximum at a concentration of approximately 786 ..mu..g m/sup -3/, were found when larvae were reared on foliage allowed 24 h in which to recover from fumigation. No effect on growth was observed when plants were fumigated with 65 ..mu..g m/sup -3/, indicating a threshold for effect between 65 and 131 ..mu..g m/sup -3/ under the conditions of these tests. Change in the plant induced by fumigation, as indicated by growth response of the insects, was rapid, occurring in less than 6 h when plants were fumigated at a concentration of 1310 ..mu..g m/sup -3/; recovery of the plant from an exposure was slow relative to response time.

• Research Organization: Boyce Thompson Institute for Plant Research, Ithaca, NY
• OSTI ID: 6984880
• Journal Information: Environ. Entomol.; (United States), Journal Name: Environ. Entomol.; (United States) Vol. 14:6; ISSN EVETB
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
ARTHROPODS
BACTERIA
BEETLES
BIOLOGICAL EFFECTS
CHALCOGENIDES
COLEOPTERA
DOSE-RESPONSE RELATIONSHIPS
ECOLOGICAL CONCENTRATION
GLYCINE HISPIDA
GROWTH
INSECTS
INVERTEBRATES
LARVAE
LEGUMINOSAE
MICROORGANISMS
OXIDES
OXYGEN COMPOUNDS
PLANTS
RHIZOBIUM
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES