Environmental Entomology (1981) 10, 153-157

P.B. Baker, R.H. Ratcliffe and A.L. Steinhauer (1981)
Tolerance to hairy chinch bug feeding in Kentucky bluegrass
Environmental Entomology 10 (2), 153-157
Abstract: Seventeen Kentucky bluegrass, Poa pratensis L., cultivars were evaluated for tolerance to feeding by adult hairy chinch bugs, Blissus leucopterus hirtus Montandon. Adults were confined on one month-old plants within a 10 cm diam x 20.3 cm high cylindrical plastic cage for 17-19 days. Cages were divided longitudinally so that 1/2 of the plants in each pot were infested. Tolerance was evaluated as differences between infested and uninfested plants for height of regrowth, dry weight, yield of clippings, root length and weight, plant survival, tillering, and % dry matter. Regrowth, yield of clippings, root length, and plant survival were significantly reduced and % dry matter significantly increased in almost all cases by adult feeding. Dry weight, root weight, and tillering of plants were not significantly changed by feeding. Significant differences were found in tolerance among Kentucky bluegrass cultivars. Differences in cultivar regrowth, yield, and % dry matter were the most useful criteria for measuring tolerance.
(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:
resistance/tolerance/defence of host
damage/losses/economics

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Blissus leucopterus	Poa (crop)