Potato Stores in Great Britain - The Food and Environment Research ...

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Table 5 Usage of individual active substances on stored ware potatoes in Great Britain, 2000 Farm stores Merchant stores Total Tonnes Tonnes Tonnes Tonnes Tonnes Tonnes treated (a.s) treated (a.s) treated (a.s) Pesticide Chlorpropham 2,142,179 34.94 936,160 15.26 3,078,338 50.19 Imazalil 25,536 0.21 4,525 0.04 30,061 0.25 Propham 149,660 0.18 . . 149,660 0.18 Pyrethrins 147,077 < 0.01 10,723 < 0.01 157,800 < 0.01 Tecnazene 69,601 4.54 32,556 3.97 102,157 8.51 Thiabendazole 34,606 0.7 37,506 1.5 72,112 2.2 Unspecified potato sprout suppressants . . 13,368 . 13,368 . Total 1 – all pesticides 2,418,999 40.56 1,034,837 20.8 3,453,836 61.36 Table 6 Farm Potato Stores: Storage pesticides and their reason for use on ware potatoes in Great Britain, 2000 Sprout Disease Sprout supp. & Unspecified Total Active suppressant control disease control reason tonnes substance treated (tonnes) Pesticide Chlorpropham 1,427,231 . . 565,287 1,992,519 33.77 Chlorpropham/propham 149,660 . . . 149,660 1.35 Imazalil . 14,419 . 11,116 25,536 0.21 Pyrethrins . . . 147,077 147,077 < 0.01 Tecnazene 22,366 . 202 47,033 69,601 4.54 Thiabendazole . . . 34,606 34,606 0.7 Total – all pesticides 1,599,257 14,419 202 805,120 2,418,999 40.56 Table 7 Merchants’ Potato Stores: Storage pesticides and their reason for use on ware potatoes in Great Britain, 2000 Sprout Disease Sprout supp. & Unspecified Total Active suppressant control disease control reason tonnes substance treated (tonnes) Pesticide Chlorpropham 907,763 . . 28,397 936,160 15.26 Imazalil . 1,485 2,228 811 4,525 0.04 Pyrethrins . . . 10,723 10,723 < 0.01 Tecnazene 26,365 . 2,477 3,713 32,556 3.97 Thiabendazole . 37,506 . . 37,506 1.5 Unspecified potato sprout suppressants 7,798 . . 5,570 13,368 . Total – all pesticides 941,927 38,991 4,705 49,214 1,034,837 20.8 1 Denotes the total tonnage treated, not the column sum as entries are not always mutually exclusive. 10
Table 8 Farm Potato Stores: Formulations of storage pesticides used on ware potatoes in Great Britain, 2000 (tonnes treated) Thermal fog Granule Spray Total Pesticide Chlorpropham 1,992,519 . . 1,992,519 Chlorpropham/propham 149,660 . . 149,660 Imazalil . . 25,536 25,536 Pyrethrins 147,077 . . 147,077 Tecnazene . 69,601 . 69,601 Thiabendazole . . 34,606 34,606 Total – all pesticides 2,289,256 69,601 60,142 2,418,999 Table 9 Merchants’ Potato Stores: Formulations of storage pesticides used on ware potatoes in Great Britain,2000 (tonnes treated) Dust Thermal fog Granule Spray Total Pesticide Chlorpropham . 928,001 8,158 . 936,160 Imazalil . . . 4,525 4,525 Pyrethrins . 10,723 . . 10,723 Tecnazene 2,663 . 29,893 . 32,556 Thiabendazole . . . 37,506 37,506 Unspecified potato sprout suppressant . 13,368 . . 13,368 Total – all pesticides 2,663 952,092 38,052 42,030 1,034,837 11
Page 1 and 2: PESTICIDE USAGE SURVEY REPORT 174 P
Page 3: DEFINITIONS a) 'Applications' is us
Page 6 and 7: INTRODUCTION The independent Adviso
Page 8 and 9: METHODS The sample The samples of h
Page 10 and 11: RESULTS AND DISCUSSION WARE POTATOE
Page 12 and 13: 8 Table 2 Storage methods used for
Page 16 and 17: SEED POTATOES RESULTS AND DISCUSSIO
Page 18 and 19: Tabe 12 Usage of individual active
Page 20 and 21: Treatment of potatoes at merchant s
Page 22 and 23: SEED POTATOES Storage type The tota
Page 24 and 25: ACKNOWLEDGEMENTS Thanks are due to

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