Bulletin, Issue 51H.M. Stationery Office, 1939 - Agriculture |
Contents
INTRODUCTION | 1 |
THE SMALL BULB FLIES | 7 |
Preventive Treatments | 13 |
Copyright | |
4 other sections not shown
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Common terms and phrases
adult flies affected bulbs appear areas attack by Bulb bait base plate beds BELFAST breed Bulb Eelworm bulb land Bulb Mite Bulb Scale Mite bulbs become Bulletin CARDIFF cissus colour commercial growers considerable Control Measures crop cultivation cyanide damage destroyed early eelworm attack eelworm-infested effected egg-laying Eumerus larvae feed field flower bud flower stems Fly larvae foliage FORCED BULB forcing houses formaldehyde frequently fumigation ground growing bulbs growth healthy bulbs heat host plant hot-water treatment hypopi inch in length infested bulbs injury invariably known large numbers Leaf and Bulb loss Merodon larvae Metaldehyde narcissus bulbs Narcissus Fly NARCISSUS PESTS normal occur oviposit pair patches period Plantain practice presence of Bulb present resembling result Ribwort Plantain serious slugs Small Bulb Flies soil species spickels spray spread stage stocks strigatus subsequent Syritta pipiens Syrphidae temperature tion treatment of bulbs tubercles tuberculatus usually varieties weeks whilst York House