Environmental Entomology (1981) 10, 550-553

S. Quisenberry and T.R. Yonke (1981)
Responses of 'Kentucky-31' tall fescue to varying Forcipata loca DeLong and Caldwell infestation levels: Growth chamber study (Homoptera: Cicadellidae, Typhlocybinae)
Environmental Entomology 10 (4), 550-553
Abstract: The effects of various infestation levels of Forcipata loca Delong and Caldwell on the yield, tillers/plant, yield/tiller, leaf elongation rate, carbon dioxide exchange rate, specific leaf weight, leaf diffusive resistance, and water soluble carbohydrate concentration of 'Kentucky-31' tall fescue, Festuca arundinacea Schreb., were studied. The growth response of tall fescue to 9 and 27 leafhoppers/9.5 cm diam. plastic pot was increased tillering with corresponding decreases in yield and yield/tiller after each of 2 infestation periods. Leaf elongation rates were less at the low infestation level of 3 leafhoppers/pot. Photosynthesis and specific leaf weight were only affected at the high feeding level (27 leafhoppers/pot) and only after a second infestation period. There was no significant reduction in leaf diffusive resistance at either infestation level. Water soluble carbohydrate concentration in the leaves decreased with increasing infestation levels.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)

Research topic(s) for pests/diseases/weeds:
damage/losses/economics

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Forcipata loca	Festuca (crop)