| lawn parameters influencing abundance and distribution of the hairy chinch bug (hemiptera: lygaeidae). | management of lawns that promotes conditions detrimental to the development of insect pests may represent a valuable environmentally benign turfgrass management strategy. in the cool-humid region of quebec, canada, we investigated 45 lawns infested with hairy chinch bug, blissus leucopterus hirtus montandon, to identify lawn parameters related to its distribution and abundance. kentucky bluegrass, creeping bentgrass, and perennial ryegrass, respectively, accounted for 55.8, 19.6, and 9.3% of the ... | 2000 | 10826187 |
| efficacy of piper (piperaceae) extracts for control of common home and garden insect pests. | extracts from three species of the plant family piperaceae, piper nigrum [l.], piper guineense [schum & thonn, and piper tuberculatum [jacq.], were tested for efficacy against insects from five orders. all three species contain isobutyl amides, plant secondary compounds that act as neurotoxins in insects. these materials are considered safe to mammals because piper spp. were used for centuries for spice and medicinal purposes. when 24-h p. nigrum lc50 values were compared between common insect p ... | 2004 | 15384353 |
| sequential sampling plans for the hairy chinch bug (hemiptera: lygaeidae). | two sequential sampling plans were developed to produce tools to reduce the use of pesticides for the control of the hairy chinch bug, blissus leucopterus hirtus montandon, on turfgrass lawns in the cool-humid region of quebec, canada. a first plan based on wald's method was shown to be too conservative in a validation conducted on infested lawns. the second plan developed using iwao's method yielded good results. the difference between the two plans may have occurred because no common k could b ... | 2000 | 10902338 |
| hairy chinch bug (hemiptera: lygaeidae) damage, population density, and movement in relation to the incidence of perennial ryegrass infected by neotyphodium endophytes. | studies examined hairy chinch bug, blissus leucopterus hirtus montandon, damage, population density, and movement in stands of perennial ryegrass, lolium perenne l., containing various proportions of endophyte infected plants (e+). our main objective was to determine the utility of mixtures containing e+ for management of chinch bugs. chinch bug damage and population density decreased linearly as the proportion of e+ increased. this trend held true even when chinch bug populations were extremely ... | 2000 | 10985027 |
| chinch bug (hemiptera: blissidae) mouthpart morphology, probing frequencies, and locations on resistant and susceptible germplasm. | chinch bugs are common pests of many agronomic and horticulturally important crops and turfgrasses. previous research has indicated that some grasses exhibit resistance to multiple chinch bug species, whereas others are resistant to only one species. the objectives of this research were to document differences in the probing frequencies and locations among blissus species as well as differences in mouthpart morphology as a first step in understanding the differential responses of grasses to chin ... | 2006 | 16573342 |
| differential responses of forage pearl millet genotypes to chinch bug (heteroptera: blissidae) feeding. | chinch bug, blissus leucopterus leucopterus (say) (heteroptera: blissidae), is one of the most important insect pests on forage pearl millet, pennisetum glaucum l. r. br., production in the southeastern united states. twenty-nine forage pearl millet genotypes were assessed for chinch bug resistance by using stunt and necrosis ratings in combination with quantitative measurements of chlorophyll content and leaf photosynthetic rate. plant stunt and leaf sheath necrosis ratings, and chlorophyll con ... | 2009 | 19886463 |
| evaluation of cool- and warm-season grasses for resistance to multiple chinch bug (hemiptera: blissidae) species. | chinch bugs are common pests of many agronomic and horticulturally important crops and turfgrasses. the extensive overlap of plant hosts and geographic distribution of blissus leucopterus leucopterus (say), blissus leucopterus hirtus montandon, blissus insularis barber, and blissus occiduus barber underscores the importance of identifying resistant germplasm. cool- and warm-season turfgrasses and sorghum, sorghum bicolor (l.) moench, were evaluated for resistance to chinch bugs in the blissus co ... | 2006 | 16573341 |