Abstract
There were 3 distinct periods during which 100% defoliation affected yield parameters of potatoes. Plants were especially susceptible to defoliation 3–5 weeks after 50% stand emergence. In a weekly defoliation study, the 29% defoliation level had no effect on yield but the weekly 58% level significantly reduced yield. An equation relating fresh plant weight to leaf area was developed.
Resumen
Se encontraron 3 períodos distintos durante los cuales defoliación del 100% afectó los parámetros de rendimiento de papa. Las plantas fueron especialmente susceptibles a defoliación 3–5 semanas después que el 50% emergieron. En un estudio de defoliación en períodos semanales, el 29% de defoliación semanal no afectó el rendimiento pero el 58% de defoliación semanal redujo el rendimiento significativamente. Se desarrolló una equación relacionando peso fresco de la planta con área foliar.
Similar content being viewed by others
Literature Cited
Anonymous. 1972. United States Standards for Grades of Potatoes, USDA, Food Safety and Quality Service, Washington, D.C. 19 pp.
Beresford, B.C. 1967. Effect of simulated hail damage on yield and quality of potatoes. Am Potato J 44:347–54.
Chester, K.S. 1945. Defoliation and crop loss. Plant Dis Rep 29:162–8.
Cranshaw, W.S. and E.B. Radcliffe. 1980. Effect of defoliation on yield of potatoes. J Econ Entomol 73:131–4.
Epstein, E. and R.R. Robinson. 1965. A rapid method for determining leaf area of potatoes. J Agron 57:515–6.
Hare, J.D. 1980. Impact of defoliation by the Colorado potato beetle on potato yields. J Econ Entomol 73:369–73.
Jensen, R.L., L.D. Newsom, D.C. Herzog, J.W. Thomas, Jr., B.R. Farthing, and F.A. Martin. 1977. A method of estimating defoliation of soybean. Ibid. 70:240–2.
Murphy, H.J. and M.J. Goven. 1962. The effect of simulated hail damage on yield and quality of potatoes in Maine. Maine Agric Exp Stn Bull 607. 33 pp.
Poston, F.L. and L.P. Pedigo. 1976. Simulation of painted lady and green cloverworm damage to soybeans. J Econ Entomol 69:423–26.
Snyder, G.B. and L.F. Michelson. 1958. The effects of simulated hail damage on potatoes. Massachusetts Agric Exp Stn Bull 506. 16 pp.
Sparks, W.C., G.W. Woodbury, and F.H. Takatori. 1957. Estimating hail injury in potatoes. Idaho Agric Exp Stn Bull 274. 22 pp.
Sparks, W.C. and G.W. Woodbury. 1959. Stages of potato plant growth: a guide in estimating losses from defoliation. Ibid. Bull 309. 22 pp.
Stone, J.D. and L.P. Pedigo. 1972. Development and economic-injury level of the green cloverworm on soybean in Iowa. J Econ Entomol 65: 197–201.
Takatori, F.H., W.C. Sparks, and G.W. Woodbury. 1952. A study of simulated hail injury on potatoes. Idaho Agric Exp Stn Res Bull 22. 15 pp.
Watson, D.J. 1937. The estimation of leaf area in field crops. J Agric Sci Camb 27:474–83.
Author information
Authors and Affiliations
Additional information
Approved as TA-16016 by the Director, Texas Agric. Exp. Sta., College Station.
Formerly, Texas A&M University Vegetable Research Station, Munday, Texas
Rights and permissions
About this article
Cite this article
Wellik, M.J., Slosser, J.E. & Kirby, R.D. Effects of simulated insect defoliation on potatoes. American Potato Journal 58, 627–632 (1981). https://doi.org/10.1007/BF02852593
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02852593