3io 
Garden Work 
it. Cart grease, bird lime, or vaseline may be used. If 
the grease should get dry it must be renewed. The 
female insects, which are wingless, crawl up the stems, 
get caught by the grease, and are thus unable to lay 
their eggs. Though this may check the egg-laying to 
some extent, it does not entirely stop it, as the wingless 
females have been known to be carried above these 
grease bands by the males. The eggs are usually laid 
at the ends of the shoots. This makes it easy to destroy 
large numbers of them by late pruning. In badly in- 
fested districts larvae are sometimes to be found on trees 
even when all these precautions are taken. The only 
way to get rid of these is to spray the trees with some 
poisonous wash, such as Paris green or London purple, 
in the proportions given for the Codlin Moth. 
Slugworms. — These are the larvae of certain Saw- 
first white, but ultimately become green, or nearly black. 
They are covered with a sticky substance. They do a 
great amount of damage to the leaves of the trees, which 
Slugvorm or Sawfly 
flies. They do consider- 
able damage to many 
trees, such as the Apple, 
Pear, Cherry, Plum, &c. 
The Sawfly is about 
£ in. long, is black in 
colour and hairy. The 
female lays her eggs on 
the under surface of the 
leaves, and in a short 
time the larvae are 
hatched. These are at 
