Effect of plant age on potato leafhopper infestation of resistant and susceptible potato clones |
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| Authors: | L L Sanford |
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| Institution: | 1. Horticultural Science Institute, Beltsville Agricultural Research Center, Agricultural Research, Science and Education Administration, U.S. Department of Agriculture, 20705, Beltsville, Maryland
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| Abstract: | The effect of age of resistant potato clones,Solarium tuberosum gp.tuberosum, on infestation by potato leafhopper,Empoasca fabae (Harris), was investigated by varying the date of planting in a naturally infested fieldtest Significant differences (P < .05) in infestation levels were found among clones and among dates of planting. The responses of resistant and susceptible clones to infestation differed with date of planting. But lower levels of infestation occurred on all clones in the first 2–3 weeks of leafhopper migration on the early plantings, indicating that plant age in potatoes is a factor in host preference of potato leafhopper |
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