Ips Beetles of Pinyon Pines

Ips Beetles of Pinyon Pines (Ips hoppingi) - Pinyon pines are the most abundant pine trees in West Texas. These small to medium sized trees grow in dry woodland environments prone to frequent fire and drought. Under these stressful conditions, native bark beetles known asengraver beetles (Ips spp.) flourish by utilizing pinyons as a source of food and habitat. Two species of Ips inhabit pinyon pines in Central-Western United States. Ips hoppingi is known to infest the most common pinyons of the Trans-Pecos and western Edwards Plateau in Texas, papershell pinyon (Pinus remota) and Mexican pinyon (P. cembroides); and is also found in SW Arizona, southern New Mexico, and Mexico. Ips confusus, or pinyon ips, commonly attacksColorado pinyon (P. edulis), found in the Guadalupe Mountains and as a commonly cultivated tree in landscapes andwindbreaks. However, this species is not distinguishable from Ips hoppingi based on external characteristics and hasonly been recorded from Arizona, New Mexico, Colorado, Utah, Nevada, and California.



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