TWO NOTORIOUS INSECT TESTS. 697 



B. 77. puera — 

 In ilie foresU 



(1) Trass and plants, which are valueless from a forest point of 



view and the leaves of which are a favourite food of the 

 larvae, should he cut out and destroyed as far as possible. 



(2) Insectivorous birds must be protected, as they are a powerful 



check on the increase of the insect's numbers. 



(3) Undergrowth should be cleared, when this can he done without 



injuring the forest, and dead leaves allowed to accumulate 

 under the trees. 

 A large number of larvae will pupate in these leaves and in 

 the soil, and if pigs are allowed in the forests, while the 

 larval attacks are in progress, they will destroy large num- 

 bers of larvae and pupae. 

 In the nursery. 



(4) Plants should be sprayed with insecticides. 



(5) The ground should be kept clear of weeds and dead leaves 



from April to November. The larvae will then pupate 

 largely on the leaves of the attacked plants, and, being large 

 and easily seen, can be collected from them by hand. 



n 



