. Better fruit. Fruit-culture. I9" BETTER FRUIT p«ge 27 SOME INSECTS AND MITES ATTACKING THE PEACH BY GEORGE P. WELDON, EXPERIMENT STATION, FORT COLLINS, COLORADO THE novice in the business of grow- ing peaches in Colorado very often begins with a mistaken notion that peach trees require no spraj'ing. That notion has probably grown out of the fact that in the early history of orchard- ing in the state spraying for the control of insect pests was confined almost entirely to apples. While the spraying of peach trees may not be necessary every season there are times when cer- tain sprays are
. Better fruit. Fruit-culture. I9" BETTER FRUIT p«ge 27 SOME INSECTS AND MITES ATTACKING THE PEACH BY GEORGE P. WELDON, EXPERIMENT STATION, FORT COLLINS, COLORADO THE novice in the business of grow- ing peaches in Colorado very often begins with a mistaken notion that peach trees require no spraj'ing. That notion has probably grown out of the fact that in the early history of orchard- ing in the state spraying for the control of insect pests was confined almost entirely to apples. While the spraying of peach trees may not be necessary every season there are times when cer- tain sprays are necessary in order that destructive pests may be controlled. One who hopes to make a success growing high grade fruit must resort to spraying whenever the prevalence of some insect pest demands it. It would not be wise to lay down set rules for the spraying of peaches, for there are too many fac- tors that may bring about a marked increase or decrease in the numbers of certain pests occurring from season to season. For example, last spring a very severe infestation of the common green peach aphis in the peach growing sec- tions of Colorado made it necessary that stringent methods of spraying be adopted. The previous spring the occurrence of this pest was very general, but it was not abundant enough in most orchards so that it was necessary to spray for its control. Often a dormant spray of lime and sulphur or soluble oil is beneficial in orchards where certain pests may be spending the winter. Too much, how- ever, should not be expected of dormant sprays, and while there are insects that they may control very efifectively there are others that will be controlled but partially or not at all. Very often the orchardist who uses a lime and sulphur spray seems to lose sight of this fact, and because the spray does not meet. LARVAE IN BURROW with his expectations in controlling some certain, pest he condemns it for all of them. As a matter of fact he probably was paid for its use i
Size: 1238px × 2018px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcontributorthelibraryofcongress, booksubjectfruitculture
