464 Report oF THE HorTIcULTURIST OF THE 
Spray the newly set plants soon after growth begins and follow 
with three or four treatments during the season, as seems neces- 
sary. The following spring, spray just before blossoming and 
again in from ten days to two weeks. As soon as the fruit is 
gathered it is generally a good plan to mow off the foliage if badly 
diseased and burn it if the beds are to be fruited a second season. 
Should drought follow, the plants may not recover from this treat- 
ment sufficiently to give a satisfactory crop the following year. 
Varieties differ greatly in their susceptibility to leaf spot. Con- 
sequently, one of the best ways to avoid loss from this disease is 
to plant those varieties which are least subject to it. 
STRAWBERRY INSECTS. 
CROWN BORER. 
(Tyloderma fragariae Riley.) 
Description.— The adult insect is a dark brown beetle, of the 
curculio group, measuring about one-sixteenth of an inch in length. 
The beetles appear in June or July. The eggs are laid on the 
plant above ground not far from the crown of the root. The eggs 
hatch into small, white, legless grubs. These grubs burrow down 
into the crown where they feed until full grown. Pupation takes . 
place within the excavation, the beetles finally escaping about the 
middle of August. They are unable to fly. There is but one 
brood annually. 
Treatment.— The crown borer is most injurious on old beds, 
and as each plant that becomes infected is eventually doomed, it 
will usually be most practical to dig up and burn the infested 
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vines. | 
GRUBS. 
The larvee or grubs of the common May beetle and other closely 
related species, frequently do much injury by feeding on the roots 
of strawberry plants. 
The beetles lay their eggs in sod ground. The eggs hatch into 
white grubs, which feed on the roots of various plants until the 
