is flesh. A second spraying
for this and other insects is often useful. Blundell, Spence & Co.
(Ltd.), Hull, supply good paste. Price 1/2 lb. 1s., less for larger
quantities. See also No. 3.

3. The Pear Leaf Mite causes small blisters on the leaves, but not the
tunnels or galleries of the Blister Moth. It winters in the bud scales,
and emerges in the spring. If the trees are washed and syringed, the
attacks will be lessened. In (2) and (3) collect the blistered leaves as
soon as seen, burn them and spray or syringe at once.

Miss Ormerod recommends a dilute paraffin emulsion sprayed over infested
leaves. Dissolve 1/4 lb. of soft soap in a gallon of water, add this
while boiling to two gallons of paraffin, churn the whole with syringe
or small pump for ten or fifteen minutes to make a perfect mixture. For
spraying add 12 gallons of water to each gallon of the emulsion. Stir
well while spraying, and try the mixture on a branch or two lest it be
too strong; if so, add more water. This emulsion is good for the Blister
Moth and the Slug-worm.

4. The Slug-worm is so called from the similarity of the larva of this
sawfly to a small black slug. The worms feed on the upper surface of the
leaves. Dust with quick lime two or three days in succession, or syringe
with strong soap-suds and some tobacco water. Clean with pure water in a
few days. The paraffin emulsion (No. 3) might also be used. Quick-lime
scattered around the roots and forked three or four inches into the soil
may destroy their cocoons. But beware of excess. The remedy may be worse
than the disease.

Insects that attack leaves will also eat the skin of the young fruits if
conveniently placed for them.

5. The Pear Sucker is a jumping plant-louse which early in the season
sucks the juices of the tree about the axils of the leaves. They are
covered with the exudations of the sap, which often drops on the ground.
The visits of the ants should call attention to this pest. Syringe well
with soft soap and water, 1/2 lb. to 4 gallons, and add tobacco water.
Remove all rough bark (their hiding-places) in winter.

6. The Pear Gnat Midge (_Diplosis pyrivora_) may readily ruin a crop if
unchecked. It is a recent importation among us. Both here and in the
United States it is spreading with alarming rapidity. It is a small
two-winged fly, with a black body having lines of yellow hair. The
female pierces the flower-buds and lays her eggs in them. These soon
hatch, and the