570 



Dudley (F. H.). Report of the State Horticulturist. — 19th Ann. 

 Kept. Maine Commiss. Agyic. 1920, Augusta, 1921, pp. 26-49, 

 3 figs. [Received 1st October 1921.] 



The situation as regards gips\^ moth [Porthetria dispar] in Maine 

 is very serious. It is impossible for the State to make suitable appro- 

 priations for dealing with this pest, but with the assistance of the 

 towns and cities in the infested area a great deal may be done towards 

 eradication. Other noxious insects recorded include the raspberry 

 cane borer \_Oberca bimaculata], which may be controlled by cutting 

 and binding infected tips below the girdled point and cutting down 

 affected canes in the late summer before the larvae enter the base 

 for hibernation. Leafhoppers, Empoasca mali, E. lupcolor and 

 Empoa (E.) rosae caused considerable damage in orchards. E. rosae 

 may be controlled by removing currant and gooseberry bushes (on 

 which it passes the winter) from infested orchards. Spraying with 

 kerosene emulsion or nicotine sulphate, 5-12 U.S. pints to 40 U.S. 

 galls, of water, with the addition of 2 lb. of soap to soft water and 4 lb. 

 to hard, is effective against all leafhoppers. Soap should not be used 

 if nicotine sulphate is added to lime-sulphur sohition. 



Against the European corn borer iPyrausta nubilalis) a general 

 campaign is considered necessary. It is suggested that maize-growing 

 in infested areas should not be curtailed, but that planting within 

 the quarantined districts should be limited to such areas as the farmers 

 themselves can deal with by destroying weeds and stubble and putting 

 maize fodder in silos. 



Deep ploughing in late autumn is advocated against Heliothis 

 ohsolcta (corn ear worm). Papaipcma nehris (nitela) (common com 

 stalk borer), though less abundant than in the previous year, has 

 caused considerable damage ; grass adjoining maize fields should be 

 mown and promptly removed as fodder or burnt. Many beneficial 

 insects are also recorded [R.A.E., A, viii, 529]. 



Conner (A. R.I. [Entomological Work.] — 33rd Ann. Kept. Texas 

 Agric. Expt. Sta., College Station, 1920, pp. 18-22, 1 fig. 

 [Received 1st October 1921.] 



A brief account is given of the measures against various insect 

 pests during 1920, many of which have already been noticed 

 [R.A.E., A, viii, 501 ; ix, 350, 425]. Burning sulphur in the fields 

 at night proved useless in the control of AntJionomns grandis. 



Cultural practices such as rotation, or the planting of potatoes in 

 uninfested land and the use of uninfested slips, will greatly reduce the 

 losses due to the sweet potato weevil [Cylas forniicariiis]. 



As a result of the enforcement of the foul-brood eradication law, this 

 disease of honey bees has been greatlj^ reduced throughout the State. 

 Of 25,676 colonies inspected less than 4 per cent, were found to be 

 infected. 



Department of Entomology. — Ann. Rept. Virginia Poly. Inst. Agric. 

 Expt. Sta., 1918-1919, Blackshnrg, 1920,"^ pp. 25-26. [Received 

 1st October 1921.] 



No practical method of eradicating woolly aphis [Eriosoma lani- 

 gerum] from infested trees has been found. Infestation is particularly 

 noticeable on young apple trees in nurseries and orchards. The oriental 



