SOME GEORGIA INSECTS DURING 1906. 103 



grass and cotton — several fields of the former and one of the latter. 

 Cotton was attacked in a peculiar manner. The leaves were not 

 injured materially, but the young squares were devoured, and the 

 worms had eaten into young bolls, destroying them completely. 



This army worm appeared over considerable areas of grass fields 

 at Albany, Vienna, and Americus. At Albany it was learned that 

 the worms first became noticeable about August 1, and nearly all 

 disappeared by August 10. My assistant, Mr. Lewis, who investi- 

 gated the outbreak at all of the points mentioned, found great num- 

 bers of pupae on August 14, from which adults emerged a few days 

 later. The greatest injury caused by this insect in any one locality 

 was at Albany, where 60 acres of grass were destroyed. The total loss 

 in the State amounted to several thousand dollars. Cowpeas were 

 injured slightly at Albany. 



No other important insects of grain or grass have been reported or 

 observed, except the usual cutworms and the white grubs attacking 

 the roots. 



FRUIT-TREE INSECTS. 



Aspidiotus pemiciosus Conist. Avas quite well controlled last winter 

 and spring wherever lime-sulphur wash was properly applied. The 

 soluble oil preparations have been used as a remedy with more or less 

 success. Their value for Georgia conditions has not yet been fully 

 demonstrated, though we feel certain that a strength greater than 

 recommended by the manufacturers must be used to insure success. 

 We have recently seen good results following the use of Scalecide at 

 strengths of 1 to 10 and 1 to 12. The other soluble oil preparations 

 have all been used in experiments made at Fort Valley during last 

 October and November. 



Scolytus rugidosus Ratz., Sanninoidea exitiosa Say, Anarsia litiea- 

 tella Zell., and C onotraclielus nenuphar Hbst. all did about the usual 

 amount of damage during the past season. The last named, the plum 

 curculio, is undo'ubtedh^ an important factor in connection with 

 brown rot of peaches. Nearly all the first rotten fruit is stung pre- 

 viously by the curculio, and it seems certain that the ruptures in the 

 skin made by this insect offer a favorable entrance for the brown-rot 

 fungus. 



Aphis persiccB-niger Sm. on peach foliage was reported as being 

 quite injurious at Kensington, Silver Creek, and Augusta, Ga. To- 

 bacco decoction was found to be the most effective remedy for this 

 insect. We have not received any reports of occurrence of the root 

 form of this aphis. 



DipJotaxis frondicola Say was discovered at Cave Spring, Floyd 

 County, eating foliage from June-budded peach stock. 



