INSECTS, DISEASES, AND SPRAYING 67 
bug which sucks the sap from the fruit. 
Eggs are laid early in the spring, the young 
hatching very soon, about the first of May, 
feeding with the parents on the host. Dur- 
ing July the winged insects scatter and are 
found on a great variety of plants. 
Application of pyrethrum powder has 
proved to be the best remedy so far. Contact 
sprays, like kerosene emulsion, are also useful. 
Poisons are useless as the insects do not 
chew their food, but suck it out of the plant 
tissues. 
The red spider is the bothersome pest 
in the greenhouse. It may be controlled 
somewhat by syringing the foliage every 
pleasant day and by wetting down the walks, 
making a moist atmosphere in the house. 
Fungous diseases.— The most important 
fungous disease is a leaf spot. This makes its 
appearance in the form of small, discoloured 
spots, being most abundant about the time of 
flowering. At first these spots are of a reddish 
or purplish tint, a little later increasing in size, 
resulting in the death of the tissue and a 
change in colour to white in the centre bor- 
dered by red or purple at the edges of the 
spots. Practically all strawberries are sus- 
