Evaluation of Buffalograss Germplasm for Resistance to Blissus occiduus (Hemiptera: Lygaeidae)

Chinch Bug-Resistant Buffalograss: An Investigation of Tolerance, Antixenosis, and Antibiosis

“…Choice and no-choice studies were conducted to determine the relative levels of tolerance, antibiosis, and antixenosis among four chinch bug-resistant buffalograsses (Heng-Moss et al 2002).…”

“…Fecundity, nymphal development, and chinch bug survival were used to assess levels of antibiosis among the resistant buffalograsses (Cody, Tatanka, and NE91-118). The chinch bug-susceptible Ô378Õ (Heng-Moss et al 2002) was included in the antibiosis studies as the control.…”

“…Greenhouse and Þeld experiments designed to assess the susceptibility of selected buffalograss germplasm to B. occiduus have characterized ÔCodyÕ, ÔTa-tankaÕ, ÔBonnie BraeÕ, and the experimental selection NE 91-118 as resistant to B. occiduus (Heng-Moss et al 2002). Although these four cultivars/selections were shown to be chinch bug-resistant, studies are needed to identify the categories of this resistance.…”

Turfgrass, Crop, and Weed Hosts of <I>Blissus occiduus</I> (Hemiptera: Lygaeidae)

“…Damage ratings were based on a 1Ð5 scale, where 1 is 10% or less of leaf area with reddish discoloration, 2 is 11 to 30% of leaf area with reddish discoloration, 3 is 31 to 50% of leaf area with reddish discoloration, 4 is 51 to 70% of leaf area with reddish or yellowing discoloration, and 5 is 71% or more of leaf area with severe discoloration or dead tissue (Heng-Moss et al 2002).…”

“…The development of turfgrasses with resistance to insects offers an attractive alternative approach for managing chinch bugs associated with buffalograss because it is sustainable and environmentally compatible. Heng-Moss et al (2002) evaluated buffalograss germplasm for resistance to B. occiduus and found NE91-118 to be highly resistant, NE 86-120 moderately resistant, and 378 highly susceptible to B. occiduus feeding.…”