II02 



THE BOOK OF GARDENING. 



trees, and in time quite destroy the heart-wood. The Caterpillars 

 are pinkish at first, but just prior to assuming the pupal state 

 they are yellowish. 



Another wood-feeder is the scarcer and more beautiful Wooq 

 Leopard Moth Caterpillar. This affects the young branches 



Fig. 716. — Goat Moth. 



(natural size.) * 



rather than the trunks, and Apples, Pears, Plums, and many 

 allied trees harbour the pests. The Moths are white with steel- 

 blue spots, and measure 2in. or more in wing-expanse. The 

 female is provided with an ovipositor. The larva are of the 

 shape shown at Fig. 717, and are covered with black dots. 



These insects do not so readily 

 betray their presence as do the 

 Goat Moth Caterpillars, as they 

 cover up their exit-holes. A 

 piece of copper-wire should be 

 thrust into the holes made by 

 these wood-feeding larva? ; or 

 some powerful insecticide may 

 be squirted into their tunnels if possible. It is also a good 

 plan to seal over the entrance-holes, to preserve the trees as 

 far as possible. 



Woodlice. — These Crustaceans feed upon a variety of crops, 

 but are especially destructive to Indoor Mushrooms, Melons, and 

 to plants in frames generally. Pots half filled with hay and laid 

 upon their sides are excellent traps if they are examined each day. 

 If, however, the pests congregate in a place at all accessible, hot 

 water should be poured over them. Sliced vegetables also make 

 good traps. The most effective lure the writer has tried is one 



Fig. 717. — Larva of Wood 

 Leopard Moth. 



