. Cooperative economic insect report. Beneficial insects; Insect pests. 172 Forest Tent Caterpillar Predicted Defoliation in Minnesota - 1966 CALIFORNIA OAKWORM (Phryganidia californica) - CALIFORNIA - Causing severe damage to native oaks in Pine Hills and North Peak area, San Diego County. About 150 acres completely defoliated; light damage in remainder of area. (Cal. Coop. Rpt.). SPRING CANKERWORM (Paleacrita vernata) - MISSOURI - Adult males noted at lights in Pemiscot County March 2. (Jones, Keaster). FOREST TENT CATERPILLAR (Malacosoma disstria) - MINNESOTA - Fall and winter egg band surv
. Cooperative economic insect report. Beneficial insects; Insect pests. 172 Forest Tent Caterpillar Predicted Defoliation in Minnesota - 1966 CALIFORNIA OAKWORM (Phryganidia californica) - CALIFORNIA - Causing severe damage to native oaks in Pine Hills and North Peak area, San Diego County. About 150 acres completely defoliated; light damage in remainder of area. (Cal. Coop. Rpt.). SPRING CANKERWORM (Paleacrita vernata) - MISSOURI - Adult males noted at lights in Pemiscot County March 2. (Jones, Keaster). FOREST TENT CATERPILLAR (Malacosoma disstria) - MINNESOTA - Fall and winter egg band survey indicates infested area in- creased 41 percent over that of 1965. Infestations again in one block as in 1965, except for 2 small areas. Southern limits range from Warroad through Big Falls, Hibbing, Cook, Tower, Ely, Grand Marais to Pigeon River. Infestations in 1966 will be heavy on million acres, moderate on 1 million acres and light on million acres. Infested acreage totals million compared with million in 1965. (Minn. Ins. Rpt.). (See accompanying map). TENT CATERPILLARS (Malacosoma spp.) - TEXAS - Survey for egg cases of M. diss- tria and M. t igris in Travis, Ha"yes'^ Comal, Bexar'J Kendall, Blanco, Johnson, Burnet, Lampasas, Hamilton and Coryell Counties showed very light numbers com- pared with 1965. Several sites in main cities checked and several trees at 15- mile intervals along route inspected. Indicates much lighter damage expected this year. (Parker). ALABAMA - Light to medium numbers of M. americanum egg masses observed on~"wild cherry in central and southern areas. No hatch noted. (McQueen).. PINE NEEDLE SCALE (Phenacaspis pinifoliae) - CALIFORNIA - Locally heavy on pine and fir trees in Pine Grove, ffmador County. (Cal. Coop. Rpt.). OYSTERSHELL SCALE (Lepidosaphes ulmi) - MARYLAND - Heavy on several red maple trees in Glenridge community. Prince Georges County. (U. Md., Ent. Dept.). A CONIFER APHID (Cinara coloradensis) - CALIFORNIA
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