INSECT PESTS AND DISEASES. 



157 



spring. No green crops should be planted for a month 

 or more after gas-lime has been applied to the soil. 



THE LACKEY MOTH (Bobynxneustria),l?ig. 43. The cater- 

 pillars of this species often prove very destructive to the 

 apple and pear, as well as to several forest trees. The 

 male of the perfect insect measures about Ijin. across the 

 wings, and the fore ones are pale or dark ochreous red in 

 different individuals, and crossed with two brown or yel- 

 lowish lines, or one broad, dark-coloured band. The hind 

 wings are yellowish-brown or reddish-brown. The female 



MOTH (Bobynx neustria). A CATEKPILLAK. B MOTH. 



is large and generally paler, with a broad, dark-coloured, 

 transverse band. The caterpillars attain a length of 1| 

 in., or nearly 2 in., and are bluish-grey, with a white line 

 along the back, an orange one on each side of this, and 

 then a silvery-blue one, spotted with black, and covered 

 with long golden-brown hairs. They make their appear- 



