Insects, dr.. Injurious to Nuts. 



:]07 



THE NUT BUD MITE. 



{Ki-idjili iji's iirdlinui-. Nalopa.) 



This mite was first uljsei'\'ed by l)ujanliii(o) in 1851. Ihitil tlie 

 last few years Init little importance lias been attaclird to tins aearus, 

 wliieli is a mite closely related to, 

 but quite distinct i'rom, the Bin' 

 lliid ]\Iite of the Idack curraiil. 

 Xdi'iiially its host is the hazel, but 

 for some )'ears it has been nuticed 

 on Hlberts and more recently it has 

 inh'sted the cob nut. 



^Ir. William Beav of Ilailsham 

 wrote in I'.lOO that it was liecoming 

 serious on liis nuts. ]\Ir. F. Smitli 

 of hi)ddiri,f(ton informs me it occurs 

 on liotli his cobs and lilberts, but 

 does not seem to cause much harm. 

 In my own garden a row of cobs 

 and tillierts grow adjoining a (/opse 

 with many hazels. The latter are 

 badly infested with tliis mite, but 

 it has never taken to either oi' the 

 former, although they even inter- 

 lace witli the liazels. 



It is, however, undoubtedly 

 spreading more on to the culti\'ated 

 kinds. 



The effect on nuts is mucli the 

 same as that produced on the Ijlack 

 currant. The buds swell in a ^'ery 

 similar way, and either shrivel u]( 

 and die or they produce mere bushy, 

 deformed foliage. 



Tliere is no possilde connection between this mite and the one 

 infesting currants. The species are rpiite distinct, as shown liy 

 Xalepa. Nor will the Nut Mite infest currants. Experiments 

 carried out in tliis direction lun-e failed in e\'ery case. 



LlFK-HlSTC)j;V. 



Tlie mites live much as do those on tlie currant. The swollen 

 luuls may ))e found in ^^•inter, but tliey dn not liecome promuienl 



X 2 



/ 



FIG. lillC^rlKIMXT C.VI.I. MITF. 

 Ciiinpaie witll nut sjiucie.s t<:' sue diff 



(].. ;;us). 



(After Xilleiul.) 



