. Bulletin. Agriculture -- New Hampshire. 6 EXPERIMENT STATION BULLETIN significant. In comparison, the operator with only 35 per cent normal crop has to reason more carefully because the cost of extra sprays or additional control that year would he high per box of apples. Large and small orchards The management problem in spraying varies with the size of the enterprise. On large farms the orchardist has to press the utilization of equipment and available men to the limit at certain periods to cover the trees within the proper time. Often the spraying will continue to late hours or all night t
. Bulletin. Agriculture -- New Hampshire. 6 EXPERIMENT STATION BULLETIN significant. In comparison, the operator with only 35 per cent normal crop has to reason more carefully because the cost of extra sprays or additional control that year would he high per box of apples. Large and small orchards The management problem in spraying varies with the size of the enterprise. On large farms the orchardist has to press the utilization of equipment and available men to the limit at certain periods to cover the trees within the proper time. Often the spraying will continue to late hours or all night to take advantage of favorable weather. On small farms the equipment can cover the orchard in a short period but the op- erator may have difficulty in getting extra help when he needs it. The small operators who have learned to spray alone or with the assistance of unskilled or family help have partially solved these spray manage- ment problems. Control In order to appraise the results of spray applications, a control rating was estimated for each farm. This rating was made by the fruit specialist2 and was based on records of inspection made each fall just prior to harvest and on observations made as to degree of control of in- sect and diseases during the five-year period. The ratings represent the specialist's estimate of the relative control situation on each farm during the period of study. Thus a 92 control rating in this study means that approximately 92 per cent of the apples were free of such injury. NUMBER OF FARMS. 90 100 Figure 4. 70 80 CONTROL RATINGS -Distribution of 40 farms according to control ratings These control ratings are thought to be good workable measures of the control in each orchard. Four of the 40 farms were rated 90 or above and classified as obtaining excellent control. Nine were rated between 80 and 90 and classified as having very good control. Thirteen were 2C. O. Rawlings, Extension Please note that these images are extracted fr
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