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1 April 2011 Effect of Fertilization on Resistance of Captiva St. Augustinegrass to Southern Chinch Bugs (Hemiptera: Blissidae) and Gray Leaf Spot Disease
Ron Cherry, Alan Wright, Richard Raid, Yigang Luo
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Abstract

‘Captiva’ is a recently released variety of St. Augustinegrass which is resistant to the southern chinch bug, Blissus insularis Barber. We tested to determine if fertilization of Captiva influenced its resistance to the insect and/or disease incidence. Tissue nitrogen and phosphorus content increased in plants with increasing fertilization levels. Fertilization did not have a significant effect on Captiva resistance to southern chinch bug as measured by adult survival. However, incidence and severity of gray leaf spot disease, Pyricularia grisea (Cooke) Sacc., increased with increasing fertilization.

Ron Cherry, Alan Wright, Richard Raid, and Yigang Luo "Effect of Fertilization on Resistance of Captiva St. Augustinegrass to Southern Chinch Bugs (Hemiptera: Blissidae) and Gray Leaf Spot Disease," Journal of Entomological Science 46(2), 96-101, (1 April 2011). https://doi.org/10.18474/0749-8004-46.2.96
Received: 4 June 2010; Accepted: 1 September 2010; Published: 1 April 2011
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KEYWORDS
chinch bugs
disease
fertilization
St. Augustinegrass
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