,, OCT .*^ 1917 



385 \ , 



WoRSHAM (E. L.). Annual Report of the State Entomologist for 1914. 



—Georgia State Bd. Entoni., Atlanta, Bull. no. 42, January 1915, 

 pp. 10-20, 12 figs. [Received 29tli June 1917.] 



Experiments in control of the insect pests of the pecan {Carya olivae- 

 formis) have been successfully made, ow-ing to the increasing importance 

 of the pecan industry. Cydia {Enarmonia) caryana (pecan shuckworm) 

 does considerable damage owing to the larva boring into the young nuts 

 in spring. They hibernate in the old shucks on the ground and may 

 be controlled by gathering and destroying these, and also by late 

 autumn ploughing. Against Oncideres citujulata (pecan twig-girdler), 

 which also attacks hickory and persimmon trees, the best method of 

 control is the gathering and burning of fallen twigs in the late autumn. 

 Hyphantria cunea (fall webworm),of which there are two, or probably 

 more generations a year, can be controlled by burning the nests with 

 a torch, by twisting the nests out with a forked stick and crushing 

 them, or "by pruning them off and burning them. The shot-hole 

 borers, especially Xylobiops {Sinoxylon) basilaris, attack dead 

 or dying trees, and even healthy trees if the infestation is very 

 heavy. All dead timber in the pecan grove and surrounding woods, 

 should be removed and burnt, and if the beetles have become estab- 

 lished in large numbers, the tree-trunks should be whitewashed in 

 early spring ^vith a thick wash containing a little table salt. The 

 larvae of the pecan case-bearer [Coleophom caryaefoliella ?] attack and 

 kill the buds in spring, having hibernated as larvae in the twigs. The 

 moths appear in June and the young larvae feed on the leaves till 

 they are nearly ready to fall. They may best be controlled, therefore, 

 by spraying with powdered arsenate of lead, 1| lb. to 50 U.S. gals, 

 water, at any time between mid-August and mid-September. 



Spraying a field of water melons with arsenate of lead saved them 

 from a threatened destruction by grasshoppers, which themselves 

 were controlled by the usual poisoned bran. Early cantaloups were 

 protected against 'Diaphania nitidalis and D. hyalinata by planting 

 squash plants as trap-crops. The tomato horn-worm [Protoparce 

 sexta\ which is usually kept in check by parasites, can also be economi- 

 cally controlled by dusting with arsenate of lead mixed with flour 

 or air-slaked hme. Hellula umlalis (cabbage webworm) can be con- 

 trolled, if sprayed with arsenate of lead when the plants are first 

 attacked. Cultural methods are the chief safeguard against attacks 

 by Papaipema nebris {nitela) (common stalk-borer), Elasmopalpus 

 lignosellus (small cornstalk-borer) and Diatraea saccharalis (large 

 cornstalk-borer). Alabama argillacea and Laphygma frugiperda were 

 promptly controlled by dusting with arsenate of lead. Preventive 

 measures, such as autumn and winter ploughing, are the only safe- 

 guard against injury from Sphenophorus maidis (the corn biU-bug). 



WoRSHAM (E. L.) & Williams (I. W.). Annual Report of the State 

 Entomologist for 1915.— Georgia State Bd. Entom., Atlanta, Bull, 

 no. 45, 1916, pp. 10-20. [Received 24th June 1917.] 



The annual loss in Georgia due to insect pests is estimated to be 

 between five and ten million pounds. 



(C390) Wt.P.5/131. 1,500. 9.17. B.&F.Ltd. Gp. 11/3. a 



