Journal of Economic Entomology (1965) 58, 475-479

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O.L. Barnes (1965)
Further tests of the effect of food plants on the migratory grasshopper
Journal of Economic Entomology 58 (3), 475-479
Abstract: In further investigations on the effects of different food plants on the nymphal development and adult size of Melanoplus sanguinipes in which the grasshoppers reared from eggs collected in January 1954 from a weedy lucerne field in Arizona were placed on single or mixed diets in laboratory cages, no nymphs survived to the adult stage on Bermuda grass (Cynodon dactylon), Amarantus palmeri or Trianthema portulacastrum. The food plants on which development was best were Sisymbrium irio, Sonchus oleraceus, Lactuca serviola (scariola) and a mixture of lucerne and lettuce. Lucerne alone resulted in very low percentages of small slow-growing grasshoppers, as also did Medicago hispida, Salsola hali, Chenopodium murale and Atriplex semibaccata. Alternating a poor food plant with a good one gave results almost as good as those given with the good food plant alone, and a diet of two poor food plants gave better results than did either alone. As most of the plants used in the tests occurred in lucerne fields, weedy fields probably provide suitable diets for grasshopper development.
(The abstract is excluded from the Creative Commons licence and has been copied from Acridological Abstracts with permission by NRI, Univ. of Greenwich at Medway.)

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
environment - cropping system/rotation

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Melanoplus sanguinipes Alfalfa/lucerne (Medicago sativa) U.S.A. (SW)