Greenhouse Studies of the Host Range of Dalbulus maidis, a Vector of the Corn Stunt Virus12

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Abstract
The host range of the corn leafhopper, Calculus maids (belong and Alcott), was studied in the greenhouse by determining the suitability of various plant species to this vector of the corn stunt virus for food, opposition, and development of nymphs. Twenty test plant species were found to be suitable for opposition and 33 for food. Unlike feeding, egg laying was considered to be restricted to species in the Gamine. Females survived longer than males on the various test plants. Percent adult survival (females only) after 12 days was 85-95% on 3 species of Gamine, 50-75% on 17 species and 15-46% on 14 species. Greater numbers of eggs were laid on corn, gama-grass, and green leaf Sudan grass than on any of the other test plants. Percent adult survival on most plant species for 30 days was low; less than 10% of the adults surviving on ⅔ of 40 test selections. Egg hatch was observed on 16 species of Gamine; however, of the plants tested, nymphs successfully developed to maturity only on corn.

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