22 
SLUG-LEECH. 
For description and treatment, see under “ Pear,” page 42. 
RED SPIDER. 
For description and treatment, see under “ Hop,” page 23. 
CURRANT. 
BORER (Zmona hirta.) 
This troublesome insect is sometimes found infesting the currant, 
occasionally in such excessive numbers as to cause death. 
When the insects are not numerous, affected branches may be 
cut off; but, when the trees are badly affected, they should be rooted 
up and burned at once. 
For a more complete account, see under “ Lemon,” page 26. 
CATERPILLAR. 
The larva of a small moth, not yet identified, feeds upon the 
leaves of the currant Its habits are similar to those of the can ker- 
worm of the apricot, to which reference may be made for treatment. 
See page 21 ante. 
GOOSEBERRY. 
BORER (mona hirta). 
The gooseberry as well as the currant is infested by this pest, and 
its ravages are sometimes fatally destructive. Mr. A. T. Urquhart 
informs me that trees which bore heavy crops last season are now 
dead. The gooseberry and currant alike appear to have less power of 
resistance than the lemon ; perhaps on account of their smaller size 
and short period of duration. 
For treatment, see under “ Lemon,” page 26. 
SCALE, 
Two species of scale-insects are found on the gooseberry, some- 
times in large numbers. 
For treatment, see under ‘‘ Apple-scale,” page 16 ante. 
CATERPILLAR. 
The gooseberry is also attacked by a caterpillar bearing a strong 
resemblance to the species which infests the currant, but further infor- 
mation is required before it can be identified. 
It may be treated in a similar manner. 
HOP. 
RED SPIDER (Tetranychus telavius). 
This minute spinning-mite is a troublesome pest not only to the 
hop but to the apple and other fruit-trees in many parts of the colony. 
I have observed it in ail the districts except Taranaki, Westland, and 
