606 
men, and also because the powder adheres better on the leaves when 
the dew is on. 
Sulphur, although the essential ingredient for either oidium on 
the vines or for mites and red spider or thrips on orchard and 
garden plants is best mixed with hydrated lime, which occupies a 
position between air slaked and quicklime. “Hydrated lime” is 
prepared by adding water and quicklime in the proportion of 1 to 3 
and mixing thoroughly with a long hoe. When mixed with fine 
sulphur it acts as a diluent, a carrier, and an adhesive material. 
The dust blown into the tree or plant has more far-reaching effect 
than when the material is applied wet by meaus of the spray 
pump. 
Rep Spiper (Tetranychus telarius). 
It is a misnomer to call this insect a spider, as in reality it is a 
mite and possesses only six legs at first. The colour which it assumes 
seems to depend greatly on the sort of food it is living on. It has 
been called a spider simply from the webs 
which it spins over the trunks and branches 
and under the leaves, giving a glassy ap- 
pearance to the surface. These mites are 
able to move quickly over this web. Some 
times they are to be found ‘in masses, a 
quarter of an inch thick, on the underside 
of the leaves. They are almost omnivorous, 
and attack not merely hops, but apples, 
almonds, and vegetables of ali sorts. The 
eggs are attached to the webs, and can 
easily be detached by brushing with a hard 
brush. Let it be borne in mind that as the- 
mites congregate on the underside of the 
leaves, spraying is always difticult and 
more or less unsatisfactory; if, therefore, 
they can be attacked before the leaves burst, and while the eggs are 
clustered on the trunk and in the erevices of the bark, there will be 
a much better chance of destroying them. I find the red spider on 
apples, pears, plums, apricots, hops, beans of all sorts, roses, and 
some other garden flowers. The eggs are sometimes quite reddish, 
while at other times I have noticed that they were colourless. The 
so-called spiders are very small. not much bigger than a large full- 
stop. 
In some countries this so-called red spider does a great amount 
of damage to lemon and almond trees, but in this country it has 
seldom, if ever, caused any serious damage to fruit trees, it being 
destroyed by the little ladybird (Symnus vagans). 
Treatment.—The same as for red mite. 
Red Spider (Tetranychus oF 
telarius.) 
