464 Report of the IIorticultueist 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. 



STRAWBEERY IXSECTS. 



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 grov^Ti. 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 

 vines. 



GRUBS. 



The larvae 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 



