. Cooperative economic insect report. Beneficial insects; Insect pests. - 128 - Early infestations in Tennessee were very light but normal infestations existed at the end of the season. The southwestern corn borer entered ALABAMA in one western county in 1962 and spread into a total of 16 counties in 1963, traveling generally in a southeastern direction. Serious damage did not occur in 1963, partly because only the second and third generations were prevalent. More serious damage may occur in 1964 since the pest will be firmly established. One field observed in 1963 showed about an 8 to 10 perc
. Cooperative economic insect report. Beneficial insects; Insect pests. - 128 - Early infestations in Tennessee were very light but normal infestations existed at the end of the season. The southwestern corn borer entered ALABAMA in one western county in 1962 and spread into a total of 16 counties in 1963, traveling generally in a southeastern direction. Serious damage did not occur in 1963, partly because only the second and third generations were prevalent. More serious damage may occur in 1964 since the pest will be firmly established. One field observed in 1963 showed about an 8 to 10 percent stalk lodging from girdling during the last generation and would have represented quite a loss with machine harvesting. The insect remained at very low levels in KANSAS. In NEW MEXICO, it was present in corn roots or stalks in most fields checked in Curry, Roosevelt, Quay, Lea, Chaves, Dona Ana, Sandoval, Bernalillo, Luna and Otero Counties. DISTRIBUTION OF SOUTHWESTERN CORN BORER. LESSER CORNSTALK BORER (Elasmopalpus lignosellus) caused light damage to corn in a few south central VIRGINIA fields, and it reached damaging levels on broom- corn and sorghum in OKLAHOMA. The borer caused severe damage to sorghum in Maricopa County, ARIZONA, where replanting was necessary, and it caused consider- able damage in other areas of the State. Medium, local infestations were also noted on corn in Orange County, CALIFORNIA. In FLORIDA, small localized infestations of lesser cornstalk borer occurred in the Everglades area on sugar- cane, but in spots this species caused loss of approximately one-half the stand. The pest also caused some damage to corn in ALABAMA. SOUTHERN CORNSTALK BORER (Diatraea crambidoides) numbers ranged from light to moderate in field corn in the three lower Eastern Shore counties of MARYLAND; and the pest caused some damage to corn in upper central and northern counties of Please note that these images are extracted from scanned page images that may have
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