- 603 - 



et al., Aug. 9). MISSISSIPPI - Adult infestations in southern eradication and 

 buffer area remain heavy. Populations should soon decline as controls underway. 

 Infestations ranged 24-87 percent in 9 eradication and buffer counties. In delta 

 area, weevils becoming more prevalent. Heavier in some fields near woods. 

 (Robinson). In delta counties, punctured squares in 15 of 18 fields checked. 

 Average of 7.33 percent punctured with maximum of 53 percent. (Pfrimmer et al.). 

 TENNESSEE - Conditions ideal for further increases. Damage increasing in regularly 

 infested areas, most fields at or above control levels. Control applications 

 difficult due to weather. (Gordon). GEORGIA - Punctured squares during period 

 ending August 7 ranged 3-28 percent in Randolph County (Womack) j ranged less 

 than 5 percent where good control practices followed in Crisp, Worth, and 

 Brooks Counties (Hudspeth) ; and ranged up to 80 percent where controls interrupted 

 or stopped (Womack) . SOUTH CAROLINA - In 'Florence County for period ending August 

 4, populations increasing, no evidence of migration. This period still increasing 

 and migration underway. (Taft et al . ) . 



BOLLWORMS ( Heliothis spp.) - ARIZONA - Treated field at Yuma Valley, Yuma County. 

 Fifty percent of cotton at Avra Valley treated for H. zea and Lygus spp. in Pima 

 County. (Ariz. Coop. Sur.). NEW MEXICO - Averaging about one larva per 50 feet 

 of row in Chaves County fields checked. (Mathews) . Scattered infestations in 

 Dona Ana County, no definite second-generation cycle noted. (N.M. Coop. Rpt . ) . 

 OKLAHOMA - Moderate on cotton in Bryan County. (Okla. Coop. Sur.). TEXAS - In 

 McLennan and Falls Counties, eggs averaged 6.4 (maximum 8.5) and larvae 10.2 

 (maximum 16.1) per 100 terminals in 6 treated fields. Eggs averaged 4.4 (maximum 

 17.7) and larvae 5.2 (maximum 19) in 26 untreated fields. Of 505 larvae collected 

 from cottonj 116 or 23 percent identified H. virescens . (Cowan et al.). 

 LOUISIANA - In Madison Parish for period ending August 5, damaged squares in 88 

 of 91 plots; infestations ranged 1-16 (averaged 3.1) percent. Total of 16 eggs 

 collected and identified^ 15 were Heliothis spp. and 1 Trichoplusia ni (cabbage 

 looper) . Collected 73 H. zea and 4 H. virescens in blacklight trap, ""Currently 

 damaged squares in 90 of 91 plots examined; infestations ranged 1-9 (averaged 

 3.9) percent. (Cleveland et al.). ARKANSAS - Of 7,296 fields surveyed; 5,926 

 infested and 2,303 need controls. (Boyer et al.). 



TENNESSEE - Major increase in number of H. zea adults in blacklight traps noted 

 in western area. Number of fields above control level also increased. Boll injury 

 increasing. Weather conditions prevented control applications in most areas. 

 (Gordon) . MISSISSIPPI - Survey of late larvae in Leflore County indicates popula- 

 tions in some fields average 30 percent H. virescens. This indicates these large 

 larvae escaped treatment instead of being resistant. Infestations ranged 2-7 

 percent in 214 fields checked in 6 counties. (Robinson). In delta counties, moth 

 catch continues low. Eggs and larvae very scarce. Injured squares found in 16 of 

 18 fields checked. Average of 6.8 percent injured with a maximum of 11.5 percent. 

 (Pfrimmer et al.). GEORGIA - Small larvae ranged 0-20 and eggs 0-40 per 100 

 terminals throughout southern areas during period ending August 7 (Womack) ; 

 populations building up in Walker County (Benton) . SOUTH CAROLINA - In Florence 

 County for period ending August 4, moth collections in light traps totalled 275 

 H. zea and 4 H. virescens . Generally light populations. Currently increasing. 

 Light traps totalled 305 H. zea and 2 H. virescens . (Taft et al.). 



COTTON LEAF PERFORATOR ( Bucculatrix thurberlella ) - CALIFORNIA - Increased in 

 Imperial Valley, Imperial County. Some local heavy populations preceeded current 

 increase. (Cal. Coop. Rpt.). ARIZONA - Problem in treated fields; additional 

 insecticide added for this pest in Yuma Valley, Yuma County. (Ariz. Coop. Sur.). 



LYGUS BUGS (Lygus spp.) - ARIZONA - Buildup at Yuma Valley and Parker Valley 

 despite regular treatments. Additional insecticide mixed with regular material 

 or special treatment applied in many cases in Yuma County. (Ariz. Coop. Sur.). 



