. Cranberries; : the national cranberry magazine. Cranberries. Table 2. Massachusetts Crops in Thousands of Barrels for the Years 1949 Through 1972, Estimated Losses Due to Adverse Weathe^ Potential Crops and Penalty-points for Inclement Weather During Bloom Period of June 15 Through July 20. Year '49 '50 '51 '52 '53 '54 '55 '5b '57 '58 '59 '60 "61 '62 '63 '64 '65 '66 '67 '63 '69 '70 '71 '72 Actual Crop 520 610 560 445 690 590 546 452 563 598 540 805 472 778 637 660 735 768 573 660 755 959 1072 820 Estimated Loss 25 25 30 205 50 12 16 75 90 26 50 16 200 25 80 130 200 100 0 25 50 15 10 100
. Cranberries; : the national cranberry magazine. Cranberries. Table 2. Massachusetts Crops in Thousands of Barrels for the Years 1949 Through 1972, Estimated Losses Due to Adverse Weathe^ Potential Crops and Penalty-points for Inclement Weather During Bloom Period of June 15 Through July 20. Year '49 '50 '51 '52 '53 '54 '55 '5b '57 '58 '59 '60 "61 '62 '63 '64 '65 '66 '67 '63 '69 '70 '71 '72 Actual Crop 520 610 560 445 690 590 546 452 563 598 540 805 472 778 637 660 735 768 573 660 755 959 1072 820 Estimated Loss 25 25 30 205 50 12 16 75 90 26 50 16 200 25 80 130 200 100 0 25 50 15 10 100 Potential Crop 545 635 590 650 740 602 562 527 653 624 590 821 672 805 717 790 935 868 573 655 805 974 1082 920 Penalty- Points 34 42 45 28 32 35 23 37 21 47 61 34 37 30 35 47 30 23 64 38 53 19 55 Potential Crops for 1969-72 shown here are not the values plotted on Figure 1. These values were adjusted for effect of water-harvesting on yield. Therefore the values shown here were reduced by: 25 in '69, 144 in '70, 132 in '71 and 110 in '72. of previous years. The use of herbi- cides declined sharply after the 1959 Amino emergency. However, by 1964 the area treated had risen to about 1500 acres. This would undoubtedly have been the most seriously infested areas. Conse- quently, it would seem that the most substantial gains from weed control measures would be realized in these early years of herbicide use. The estimate of loss to spring frost in 1964 was 40,000 barrels. There were four nights between May 15 and June 5 on which 25 degree temperatures were re- ported, so any error in estimating the frost loss would probably re- sult in too low a value. This means that the larger than projected crop would have to be attributed to something other than error in esti- mating spring frost injury. The suggestion here is that the primary cause of the 1964 crop being so far above the lower line on the graph was improved weed control. By 1967, repeated use of Casoron had caused some vine inj
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