48 



the first shaking nearly 1,000 weevils had fallen, 385 were 

 shaken off five hours later, and 145 the next day. In the 

 orchard of the Eole pratique d'Agriculture des Trois Croix, near 

 Rennes, with 347 apple trees on 8 acres, the cost of treatment 

 which occupied three days, was only ll. Nearly 450,000 weevils, 

 were destroyed, and there was a satisfactory crop of apples. 



This operation must be carried out before the weevils lay 

 eggs, arid in order to accomplish this it is necessary to watch 

 closely for their first appearance, and to begin with the earliest 

 varieties of trees. 



It is, of course, most desirable that the apple growers in a 

 district should combine and arrange to wage war in this fashion 

 simultaneously, and with the same cafe and energy. 



This mode of destroying the apple blossom weevils might 

 advantageously be practised in Great Britain. It would also 

 be useful in the case of the attacks of other insects, as the 

 Winter Moth caterpillars, for example. 



There are several parasitic Hymenoptera which destroy the 

 larvae, and some kinds of birds devour both larvae and weevils, 

 as the robin, tomtit, and chaffinch, and some species of linnets. 

 It is believed that the tomtit and chaffinch extract the larvae 

 from the buds. 



