Insects, etc.. Injurious to (he Plum. 



385 



on Persliores, greengages and damsons. Bucktdu sa.ys it infests 

 many kinds of plums, both wild and cultivated, lieing common (jn 

 rnnm-s spiii,i.'<iis and P. hisi/itiii. 



TkKA'I'MEX'I'. 



This consists of spraying \\'itli some wasli having soft soap as a 

 base. Fre(|uent use and experiments have shown that it is most 

 difficult to kill with ordinary paralTin emulsion, and almost impossil.ile 

 with quassia and soft 

 soap. It has recentlv 

 been clearly demon- 

 strated by Mr. (letting 

 that it can easily be 

 destroyed by adding 

 to the paraftin emul- 

 sion li\-er of sulphur 

 at the rate of 1 lb, 

 to the 100 gallons of 

 wasli. 



Experiments witli 

 a patent ^\'ash con- 

 taining this ingreiUent 

 were also completely 

 snccsssful. (Jwiug to 

 the leaves remaining 



flat they are easily hit by a wash. Mr. Getting, however, tells me 

 he believes now and then they curl tlie leaves or else go to lea^'es 

 curled liy ^ijiJi is jirinii. 



NaTUK.VL EXEillES. 



This aphis is freely attacked by I'halcid parasites, tlie pearly dried 

 skins of the parasitised specimens being very iK.iticealjle. But in 

 spite of this the aphis often swarms. 



FIi:. -::>7. — .MK.VI.V 1'1,L"M AI'HI.S {iliinli'pti'n'^ prtm. 

 \\uv^vi\ \i\-ip;ii()ii.s fL-nialL-, fnuml in XuvniiliL-r, slmwini: 

 ^■<:)unu- w itliin. 



Rkfeeences. 



(1) Biicltoii. Ct. B. 'A Monograph of ]!ritish Aphides,' vol. 11., p. 110 (1K79). 



(2) Theobald, F. V. Report ou Econouiic Zoology for the year eniling 



April 1st, 1907, p. 7.5 (1907). 

 (.3) Thcobahl, F. V. Report on i:eononiic Zoology for the year ending 



April 1st, 1906, p. 54 (1906). 

 (4) Carpenter, (t. H. ' Injurious Insects and Other Animals obser^-ed in Ireland 



dining 1901,' p. 154 (1902). 



2 C 



