Cabbage Integrated Pest Management : An Ecological Guide.

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Cabbage Crop Development2CABBAGE CROP DEVELOPMENTSUMMARYThis chapter describes general growth stages for cabbage. Accurate growth stagedescriptions are very useful in pest management since plant susceptibility to pestsvaries with the growth stage. Some growth stages can tolerate damage by certaininsect pests or diseases whereas in other stages crop damage may result in yieldloss. Trials to study the ability of the cabbage plant to compensate for pest injuryat particular growth stages is an important element of IPM field studies.A table in this chapter indicates the susceptibility of growth stages to injury fromvarious insect pests and diseases. It can be used to develop, with farmers, amore appropriate growth stages description (or cropping calendar) for your area,based on locally used varieties and terminology.5 Cabbage Ecological Guide - 2000
Cabbage Crop DevelopmentPresently there is no standard terminology for describing cabbage growth stages like there is for rice.Although terms such as “head formation” and “cupping” do exist, it can be confusing because thisterminology is often regional and can vary among farmers and others involved in agriculture. Accuratecabbage growth stage descriptions are particularly useful in pest management since plant susceptibilityto cabbage pests varies with the growth stage.As an example, this chapter describes cabbage growth stages as they are used in the U.S.A. It alsolists the susceptibility of these growth stages to injury from various insect pests and diseases. Thegrowth stages below can used to develop, with farmers, a more appropriate growth stage description orcropping calendar for a specific area, based on locally used classification.(modified from Andaloro, J.T. et al, 1983)2.1 Cabbage growth stagesStage 1 : Cotyledons (seed leaves).No true leaves present.Stage 2 : SeedlingUp to 5 true leaves.Stage 3: 6 to 8 true leavesready for transplantingStage 4: 9 to 12 true leaves.Base of stem still visible from above.Stage 5: Precupping. Approximately 13 to 19leaves. By the end of this stage, the base of thestem and the bases of all leaves are concealedwhen the plant is viewed from above. Theinnermost heart leaves are growing in an uprightfashion and are visible without moving any of thesurrounding leaves.Cabbage Ecological Guide - 20006
Page 2 and 3: Why this guide?About this guideThis
Page 5: Introduction1.4 Cabbage: a bit of h
Page 9 and 10: Cabbage Crop Development2.2 Suscept
Page 11: Major Agronomic Practices3MAJOR AGR
Page 14 and 15: Major Agronomic Practices3.2.3 Seed
Page 16 and 17: Major Agronomic PracticesUse protec
Page 18 and 19: Major Agronomic Practices3.4.2 Soil
Page 20 and 21: Major Agronomic Practicesthan 7, th
Page 22 and 23: Major Agronomic Practices3.4.7 Soil
Page 24 and 25: Major Agronomic PracticesSome of th
Page 26 and 27: Major Agronomic PracticeslllCreates
Page 28 and 29: Major Agronomic PracticesWhen a com
Page 30 and 31: Major Agronomic PracticesIn additio
Page 32 and 33: Major Agronomic PracticesSome farme
Page 34 and 35: Major Agronomic PracticesEffects of
Page 36 and 37: Major Agronomic PracticesAn example
Page 38 and 39: Major Agronomic Practicesseed beds,
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Page 42 and 43: Major Agronomic PracticesPotting se
Page 44 and 45: Major Agronomic PracticesTransplant
Page 46 and 47: Major Agronomic Practices3.9 Water
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Page 50 and 51: Major Agronomic PracticesSome examp
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Page 54 and 55: Ecology of Insect Pests and Natural
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Ecology of Insect Pests and Natural
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Major Cabbage Insect Pests5MAJOR CA
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Major Cabbage Insect PestsDiadegma
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Major Cabbage Insect PestsTrap crop
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Major Cabbage Insect PestsThe sad s
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Major Cabbage Insect PestsPlant dam
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Major Cabbage Insect PestsJ Free bi
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Major Cabbage Insect Pestsbeetles.
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Major Cabbage Insect Pestsinstars f
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Major Cabbage Insect Pests¤Points
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Major Cabbage Insect PestsSome NPV
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Major Cabbage Insect PestsAdults ar
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Major Cabbage Insect PestsThe adult
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Major Cabbage Insect PestsLarval de
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Major Cabbage Insect PestsLife cycl
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Major Cabbage Insect Pests5.10 Whit
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Major Cabbage Insect PestsParasitic
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Major Cabbage Insect PestsRelated e
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Major Natural Enemies of Cabbage In
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Disease Ecology7.1 Plant diseases a
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Disease Ecology7.3 How diseases spr
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Disease EcologyThe disease triangle
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Disease Ecologygrowth malformations
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Disease Ecology7.8 Control or manag
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Disease Ecologycontaminated seeds :
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Disease EcologyTrichoderma species
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Major Diseases of Cabbage8MAJORDISE
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Major Diseases of CabbageRole of en
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Major Diseases of CabbageOnce there
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Major Diseases of Cabbage· Practic
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Major Diseases of Cabbage¤Points t
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Major Diseases of Cabbagespores wit
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Major Diseases of Cabbage¤Points t
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Major Diseases of Cabbagebut does n
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Major Diseases of Cabbage8.7 Downy
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Major Diseases of Cabbage8.8 Black
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Major Diseases of CabbageNitrogen (
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Weed Management9WEEDMANAGEMENTSUMMA
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Weed ManagementBroadleaf weeds or g
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Weed Managementcompost or it may be
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Weed Management· Check details of
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Weed ManagementTherefore, to date,
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Rodent ManagementRats are a common
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Rodent Management10.4 Rat managemen
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Rodent Management10.4.4 Biological
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Key to Some Common Cabbage Insect P
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Literature and Internet Reference L
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PESTS & DISEASES COMMON TO CABBAGEP
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Plate 3Fig. 13 : Advanced symptoms
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deficiency symptoms ---------------
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chemical --------------------------
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