154 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 1 



The three common peach pests, the peach borer, Sanninoidea ex- 

 itiosa Say, plum curculio, Conotrachelus nenuphar Hbst., and shot- 

 hole borer, Scolytus rugulosus Katz. are common. The wooly aphis, 

 Schizoneura lanigera Hausm., was very abundant in a few localities 

 in northern Louisiana the past year and the apple-tree tent-caterpillar, 

 Malacosonia americana Fab. is lightly distributed over the state. 



In August of this year, a serious outbreak of the social grape-cater- 

 pillar, Harrisina americana Guer., was reported from New Orleans. 

 In one instance this insect had completely defoliated a large number 

 of scuppernong grape vines and was beginning to attack the cultivated 

 grapes on the place. 



Citrus Fruit Insects 



The principal scale insects attacking citrus plants are the chaff 

 scale, Parlatoria pergandU Comst., purple scale, Lepidosaphes heckii 

 Newm., long scale, Lepidosaphes gloveri Pack., and the circular scale, 

 Chrysomphalus ficits Ashm. The latter is also quite abundant on 

 palms. The white fly, Aleyrodes citri R. & H., is abundant and in- 

 jurious. It is common in almost all of the orange-growing parishes 

 with the exception of Plaquemines and Cameron. The orange-dog, 

 Papilio thoas Linn., is common but seldom does much damage. 



Insects Injurious to Pecans 



The common pecan-infesting insects of the state are the walnut 

 caterpillar, Datana integerrima G. &. R., the fall webworm, Hyplmn- 

 tria cunea Dru., the pecan huskworm, Enarmonia caryana Fitch and 

 the hickory twig-girdler Oncideres cingulata Say. Datana integer- 

 rima was especially injurious during 1907, reports of its damage com- 

 ing in from all over the state. 



Two May beetles, Lachnosterna prunina Lee. and L. fusca Froh., 

 were reported as quite injurious to pecan trees in the northwestern 

 part of the state in 1905. The former species was the more abundant. 



Insects Injurious to Shade and Ornamental Trees 



Among the Coccids injurious to this class of plants are the rose 

 scale, Aidacaspis rosae Sandberg, the camellia scale, Fiorinia fioriniae 

 Targ. var. camelliae, the two barnacle scales, Ceroplastes cirripedi- 

 formis Comst. and C. fioridensis Comst., the oleander scale, Aspidiotus 

 iritannicus Newst., the magnolia Lecanium, Neolecaniuni cornuparvum 

 Thro, the gloomy scale, Chrysomphalus tenehricosus Comst. on Cam- 

 perdown elm, the obscure scale, C. ohscurus Comst. on oak, the oak- 

 kermes, Kermes galliformis Riley, on water oak, K. pubescens Bogue, 



