20 First Report on Economic Zoology. 



The most destructive species appears to be H. ntficornis, which 

 is winged, and which evidently migrates in large numbers. 



These beetles will feed on other substances, such as live worms, 

 cooked and uncooked meat, etc. Harpalus ruficornis and others, 

 have been recorded before in Norfolk, namely at Walsingham. 



TREATMENT. 



The only successful plan is that adopted by ^Messrs. Laxton 

 Bros., namely, to sink small pudding basins in the soil between the 

 plants every few yards and baiting them with " lights " and sugar- 

 water ; the beetles swarm to this and are unable to crawl back up 

 the sides of the basins ; similar good results have been gained by 

 using ordinary jam pots or glass jars. l*robably poisoned baits. 

 would act well, Ijut trapping as given abo^'e is a well tried and most, 

 successful plan. 



Slug- worms on Fruit Trees and Hedgerows. 



(Eriocamjm- limacina, Cameron.) 



The larvre of the Tear and Cherry Sawfly {Eriocampa limacina) 

 have been received by the Board of Agriculture from Enfield. They 

 were reported by the correspondent as doing damage to fruit-trees and 

 to the hedgerows. They are frequently very destructive to pear,, 

 cherry, and other leaves {vide p. 72). 



Another correspondent from Willingham reports them in September 

 as damaging the leaves of cherry trees theie. 



The life-history, etc., of this pest is dealt with in the revised 

 leaflet No. G2. It has not been nearly so abundant as in past 

 seasons. 



Maggots in Apples. 



A con-espondent from Uttoxeter ft)rwarded to the B(jard an apple- 

 that had been damaged by the Codling Maggot {Carpocapsa pomoneUa^ 

 Linn.). This pest is dealt with in Leaflet 30. 



The correspondent refers to the damage to the apples being due to 

 weevils : " We are suffering in our trees from the effects (jf a weevil 

 that has spoiled and lost us most of the fruit." 



Two weevils have been recorded attacking apples, namely, the 

 Purple Apple Weevil (Ehijnchitcs hacckus, Linn.) and the Copper 

 Coloured Weevil (B. cuprcus, Linn.). 



Apples also suffer from another grub which has been very preva- 

 lent this year, the Apple Sawfly {Hoplocampa festudiuca, Klug.). 



