Reports to various Correspondents. 41 



out irregularly, two broods even overlapping, nothing can be done to 

 destroy them. All we can do seems to be the rather drastic measure 

 of destroying all the leafage in September by means of a strong 

 arsenical wash and so killing the larvae and pupa3, or constant 

 spraying with paraffin emulsion in the spring to prevent egg-laying. 

 The former will of course check to a small extent the growth of the 

 tree 'pro tern. ; the latter is only successful when rains do not come 

 and carry away the effects of the wash. 



It is certainly worth while to hand-pick trees that are attacked 

 constantly so as to exterminate the moth which may occur under 

 certain conditions in dangerous numbers. This is especially to be 

 borne in mind by growers, for we can hold out less hope of com- 

 bating this insect than the Pear Midge, which still to some extent 

 baffles treatment and yet has a distinct period in its existence when 

 we should be able to destroy it. 



In examining specimens sent from Huntingdonshire I found many 

 of tlie larvae dead in their galleries. Each of the dead ones had the 

 larva (Fig. 4, c) of a Chalcid parasite which had destroyed it. These 

 natural enemies unfortunately did not hatch out. 



Caterpillars on Fruit Trees and notes on 

 Grease-banding. 



Although caterpillars were not so abundant on fruit trees during 

 1903, yet numerous inquiries have been made. Mr. Cecil Hooper, of 

 Swanley, sent a selection of larvte, asking for information, to which 

 the following reply was sent : — 



" The green- and yellow-lined larvie are Winter ]\Ioth {C. 

 hri('inuta). There were two others in the box : (1) one dull green 

 with dark head and the normal number of legs — this is the caterpillar 

 of one of the Tortricids^the so-called Allied Bud Moth (AntUhesia 

 variajana) ; (2) the second specimen, reddisli in colour, was the larva 

 of the destructive Bud Moth {Hedya ocellana), which, by the liye, 

 ]ias not been so harmful this year. There are quite a number of 

 Tortricid larvaj on fruit trees besides these two you send, 1)ut they 

 are two of the commonest." 



Larvae of the ]\Iottled Umber IMotli (Ifi/heniur (UjWuirla) have 

 also been sent from Sussex. 



Several instances have been recorded of the great Ijeneflt derived 

 ])y grease bunding for Winter Moth, mid wht^i-e this ])(^st is i\w chief 

 culprit there is not tlie least doubt that it does au innnen.se lot of 



