Cucurbitacins of Cotyledons of Cucurbitaceae Cultivars as Related to Diabroticite Beetle Attack

Cucurbit Genetics Cooperative Report 5:42-43 (article 21) 1982 J. E. Ferguson, Esther R. Metcalf, Robert L. Metcalf and A. M. Rhodes Departments of Entomology and Horticulture, University of Illinois, Urbana, Champaign The worldwide culture of many species and varieties of Cucurbitaceae is complicated by the feeding of many species of rootworms, cucumber beetles, pumpkin beetles, […]

Continue reading


Monitoring and Controlling Corn Rootworm Beetles with Baits of Dried Bitter Cucurbita Hybrids

Cucurbit Genetics Cooperative Report 4:37-38 (article 20) 1981 Metcalf, R. L., A. M. Rhodes and E. R. Metcalf* Departments of Entomology and Horticulture, University of Illinois, Urbana-Champaign, IL 61801 Recently we reported (1) that fruits of two hybrid species of Cucurbita, C. texana x C. pepo and C. andreana x C. maxima combined the genetic […]

Continue reading


Bitter Cucurbita Hybrids as Baits for Diabroticite Beetle Control

Cucurbit Genetics Cooperative Report 3:44 (article 25) 1980 A. M. Rhodes, R. L. Metcalf, and E. R. Metcalf University of Illinois at Urbana-Champaign, Urbana, IL 61801 We reported previously (1) that the leaves and fruits of bitter Cucurbita spp., e.g. C. andreana containing up to 0.3% cucurbitacins B and D and C. texana containing up to 0.1% cucurbitacin E-glycoside, were very […]

Continue reading


1979 Stocks and Germplasm Desired or for Exchange

Cucurbit Genetics Cooperative Report 2:54-56 (article 30) 1979 Stocks Desired J.M. Crall Watermelon lines with gummy stem blight resistance for crossing with the most advanced lines in our progeny selection program. J.D. McCreight Chlorophyll deficient stocks and stocks having any one or more of the following genes of Cucumis melo: g, gynomonoecious; gp, green petals; h, […]

Continue reading


Bitter Cucurbita spp. as Attractants for Diabroticite Beetles

Cucurbit Genetics Cooperative Report 2:38 (article 23) 1979 R. L. Metcalf, A. M. Rhodes, Jane E. Ferguson and Esther R. Metcalf University of Illinois, Urbana-Champaign, Urbana, IL 61801 The attacks of the striped cucumber beetle, Acalymma vittata, and the spotted cucumber beetle or southern corn rootworm, Diabrotica undecimpunctata howardi, on cultivated Cucurbitaceae and of the corn rootworm, D. u. howardi, northern […]

Continue reading