. Cooperative economic insect report. Insect pests Control United States Periodicals. - 46 - MEXICO - Gin trash inspections completed December 15 in state of Baja California and at San Luis R. C. in state of Sonora, with negative results. (PPC, Mex. Reg.; Dec. Rpt.). FOREST, ORNAMENTAL AND SHADE TREE INSECTS BARK BEETLES - FLORIDA - In pulpwood stands where salvage operations complete, bark beetles do not seem to present a problem. However, in stands where trees were practically root-spr\ing and trees leaning at an angle of 15° or more from the vertical, Ips spp. were quite active. Broods in t
. Cooperative economic insect report. Insect pests Control United States Periodicals. - 46 - MEXICO - Gin trash inspections completed December 15 in state of Baja California and at San Luis R. C. in state of Sonora, with negative results. (PPC, Mex. Reg.; Dec. Rpt.). FOREST, ORNAMENTAL AND SHADE TREE INSECTS BARK BEETLES - FLORIDA - In pulpwood stands where salvage operations complete, bark beetles do not seem to present a problem. However, in stands where trees were practically root-spr\ing and trees leaning at an angle of 15° or more from the vertical, Ips spp. were quite active. Broods in these trees mostly in last larval instar or in pupal stage. Emergence will probably occur within next 2 weeks. In these stands, Ips grandicollis seemed most prevalent, although I^. calligraphus and I^. avulsus also present. Stands consisting mainly of saw- timber or poles producing large numbers of I^. calligraphus and I^. grandicollis. These 2 species found in adult stage and pupal stage and will probably emerge within next 10 days. Beetles quite large and will probably be capable of laying large numbers of eggs. As much of wind-thrown material has been salvaged or is no longer suitable for brood production, emerging beetles will probably attack standing timber in many cases; consequently, additional tree mortality can be anticipated for next 4-5 months - possibly longer. (McCowan, Jan. 16). EASTERN TENT CATERPILLAR (Malacosoma americaniim) - WEST VIRGINIA - Egg mass svirvey on wild cherry completed. The anticipated infestations in 1961 are indicated on the map below. (W. Va. Ins. Sur.).. LEAF CRUMPLER (Acrobasis indigenella) - TEXAS - Moderate to heavy infestations on plum, peach and cherry trees in Fort Bend and Harris Counties. (Newton). A BARK-FEEDING APHID (probably Longistigma sp.) - TEXAS - Moderate to heavy infestations on oak trees in Beaumont, Jefferson Covmty. (Crocker). CAMPHOR SCALE (Pseudaonidia duplex) - FLORIDA - Collected on camellia at Winter Garden, Orange C
Size: 1937px × 1290px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
