- 741 - 



CABBAGE LOOPER ( Trichoplusla ni) - ARIZONA - Egg counts heavy on young lettuce 

 and depending on weather conditions could become serious problem at Yuma, Yuma 

 County. (Ariz. Coop. Sur.). 



DECIDUOUS FRUITS AND NUTS 



ORIENTAL FRUIT MOTH ( Grapholitha moles ta ) - CALIFORNIA - Heavy mining in twigs 

 of pears in Kearney, Fresno County^ (Cal . Coop. Rpt.). 



SAN JOSE SCALE ( Quadraspidiotus perniciosus) - UTAH - Severe in pear orchard at 

 Brigham City, Box Elder County, heavy on fruit, twigs, and petioles (Davis, 

 Knowlton) ; apricots damaged at La Verkin, Washington County. (Roberts). 



PECAN WEEVIL (Curculio caryae) - MISSISSIPPI - Larvae 3 per 100 nuts sampled 

 from orchard in Newton County. Some larvae entering soil. (Robinson). 



TWIG PRUNER ( Elaphidionoides villosus) - OKLAHOMA - Damage heavy to small limbs 

 (up to 2 inches in diameter) of pecan in area in southern Atoka County and in 

 Bennington area, Bryan County. (Okla . Coop. Sur.). 



WALNUT CATERPILLAR ( Datana integerrima) - ARKANSAS - Populations heavier than 

 usual. Many walnut trees completely defoliated in north and west areas. (Boyer) . 



WALNUT HUSK FLY ( Rhagoletis completa) - OREGON - Infested commercial walnut 

 orchard for first time near Dundee, Yamhill County. Most larvae left husks and 

 entered ground to overwinter. (Roberts, Larson). 



CITRUS 



Citrus Insect Situation in Florida - Mid-October - CITRUS RUST MITE 

 ( Phyllocoptru ta oleivora ) infested 88 (norm 67) percent of groves; economic in 

 69 (norm 41) percent. Population above average and very high. Infestations of 

 similar magnitude on leaves and fruit. Further increase expected until mid- 

 November. Highest districts west, south, north, and central. East low. 

 CITRUS RED MITE ( Panonychus citri) infested 26 (norm 23) percent of groves; 

 economic in 3 (norm 5) percent. Population still normal and in low range but 

 started upward trend which will persist through November. Rapid increase may be 

 expected in about 5 percent of groves. Highest districts west, north, and south. 

 TEXAS CITRUS MITE ( Eu te tranychus banksi) infested 23 (norm 18) percent; economic 

 in 3 (norm 4) percent. Starting to increase from normal low level. Heavy infesta- 

 tions likely to build up rapidly in scattered groves during next 2 months. 

 Highest district west. GLOVER SCALE ( Lepidosaphes gloverii ) infested 56 (norm 56) 

 percent of groves; economic in 4 (norm 7) percent . Increased but still below 

 normal abundance and in low range. Gradual increase expected. Highest districts 

 west and south. PURPLE SCALE (L. beckii) infested 46 (norm 53) percent of groves; 

 economic in 1 (norm 2) percent. CHAFF SCALE ( Parlatoria pergandii ) infested 32 

 (norm 37) percent of groves; economic in 1 (norm 2) percent . YELLOW SCALE 

 ( Aonidiella citrina) infested 14 (norm 52) percent of groves; economic in none 

 (norm 6 percent) . Populations of these scales at low level in nearly all 

 districts. Little change expected. BLACK SCALE ( Saissetia oleae ) infested 61 

 (norm 35) percent of groves; economic in 30 (norm 13) percent . Population at 

 highest level on record for October. It consists mostly of low or moderate infes- 

 tations with very few heavily infested groves. Little change expected until cool 

 weather. Highest districts central, east, and south. AN ARMORED SCALE ( Unaspis 

 citri) 27 percent of groves; 20 percent moderately or heavily infested. Popula- 

 tion will remain spotty and near level of past few months. Activity will become 

 less with onset of cooler weather. WHITEFLIES infested 91 percent of groves; 

 economic in 30 percent. Populations of eggs, larvae, and adults increased and 

 now in high range and much above normal. Decrease expected in November. All 

 districts high. (W.A. Simanton (Citrus Expt . Sta., Lake Alfred)). 



