与 «BULB FLY»相关的英语书籍
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bulb fly的用法。与
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1
Integrated Pest Management for Floriculture and Nurseries
Narcissus bulb fly attacks healthy plants; lesser bulb flies apparently are
secondary pests, preferting bulbs and root- stocks that are already diseased or
decayed. Bulb flies are ptimatily a problem in the field and in stored bulbs.
However, bulb ...
Steve H. Dreistadt, University of California (System). Division of Agriculture and Natural Resources, 2001
2
Diseases and Pests of Ornamental Plants
Work of the larvae of the narcissus bulb fly (Merodon eques- tris) in amaryllis
bulbs. A single larva is shown enlarged between the two bulbs. from secondary
causes. Plants become more stunted each year, the leaves, flowers, and bulbs
being ...
3
Agricultural Insect Pests of Temperate Regions and Their Control
tuberculatus Rond.) etc. Common name. Small Narcissus Flies (Onion Bulb Fly;
Lesser Bulb Fly) Family. Syrphidae Hosts (main). Narcissus bulbs, snowdrops,
onions. (alternative). Secondary pests in potato, carrot, and cabbages. Damage.
4
Handbook of Vegetable Pests
FAMILY SYRPHIDAE— FLOWER AND BULB FLIES Onion Bulb Fly Eumerus
strigatus (Fallen) Lesser Bulb Fly Eumerus tuberculatus Rondani (Diptera:
Syrphidae) Natural History Distribution. Onion bulb fly and lesser bulb fly are
native to ...
5
Ortho Home Gardener's Problem Solver
Narcissus bulb fly larva (life size) Problem: Narcissus and daffodil bulbs feel soft
and spongy and produce little or no growth after they are planted. Foliage that
does emerge is yellow, stunted, and looks grassy. No flowers are produced.
Denny Schrock, Ortho Books, 2004
There are no other forms of larvae with which the older larvae of the narcissus
bulb fly ordinarily might be confused. The younger larvae are somewhat similar to
the larvae of the lesser bulb flies but may be distinguished by the posterior ...
7
Handbook on Insect Enemies of Flowers and Shrubs
93 NARCISSUS Narcissus Bulb Fly Of the several species of bulb flies that attack
narcissus and other flowering bulbs, the narcissus bulb fly (Lampetia equestris (F
.)) is the most important. The maggots of this species usually feed in the center ...
Charles Adolph Weigel, Lynn Garfield Baumhofer, 1948
mon of the species. It and E. strigatus occur in the Pacific Northwest. E. narcissi is
apparently not yet established in this region. The lesser bulb flies differ from the
narcissus bulb fly in that they have more than one generation a year, and when ...
9
Handbook of Agricultural Entomology
Delia coarctata (wheat bulb fly) lays it eggs in july and August on the soil, but
paradoxically only in crops that are not its host plant (i.e. not in wheat!). Thus the
female will lay in brassica, sugar beet and potato fields. It seems to me that this
must ...
10
Library of Congress Subject Headings
... 1707-1709 Bulb and stem nematodes USE Ditylenchus Bulb canary grass
USE Phalaris tuberosa Bulb corydalis USE Corydalis bulbosa Bulb eelwonn USE
Ditylenchus dipsaci Bulb fly USE Narcissus bulb fly Bulb industry (May Subd
Geog) ...
Library of Congress. Cataloging Policy and Support Office, 2003
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ACTION PLAN: Nigel Colborn's essential jobs for your garden this …
Narcissus bulb fly is the likely cause. Adult insects lay eggs in late spring before the foliage dies away. On hatching, grubs attack the bulbs, ... «Daily Mail, 三月 15»
Garden: Plant your vegetables early
Lots of gardeners come to grief with the radish bulb fly — row covers really help here — and all the more if the radishes are grown in containers ... «Vancouver Courier, 二月 15»
Gardening in Langley: Time to start early plants
Lots of gardeners come to grief with the radish bulb fly – row covers help, and all the more if the radishes are grown in containers. Used on ... «Langley AdvanceNews, 二月 15»
Time to treat at risk crops as wheat bulb fly hatch begins
Wheat bulb fly egg hatch has kicked off in East Anglia and growers are urged to treat high-risk crops with an insecticide as soon as possible. «FarmersWeekly, 一月 15»
Middletown's ghost-hunting team debunks or confirms paranormal …
“My daughter, Melanie, had a light bulb fly at her,” Knapp said. “The original house was from the 1870s and had been a retirement home for ... «Middletown Press, 八月 14»
Garden masterclass: how to plant bulbs
Narcissus basal rot, narcissus bulb fly, narcissus eelworm and tulip fire virus may cause bulbs to decline in vigour and flowering or die. «Telegraph.co.uk, 五月 14»
Spray responsibly for leatherjacket control in grass and cereals
... a Water Dispersible Granule) is recommended for the control of Leatherjackets as well as Wheat Bulb fly, Frit fly and Wheat Blossom Midge. «Smallholder, 三月 14»
Neonicotinoids ban makes pest control harder for OSR
... approved seed treatment in wheat and barley, containing cypermethrin for controlling pests such as wheat bulb fly – could have the potential ... «FarmersWeekly, 一月 14»
Lodge helps school again
"We only replenish if areas have been attacked with narcissus bulb fly," she said. "There is a new sculpture in the woodland section called ... «Marlborough Express, 九月 13»
Wheat bulb fly may still be a threat in backward crops
Winter cereal growers should be on the alert to the threat of wheat bulb fly as backward crops could still be susceptible even though an autumn ... «FarmersWeekly, 一月 13»
