cyclamen pests and diseases - chaseagrichaseagri.com/wp-content/uploads/2016/10/cyclamen... ·...
TRANSCRIPT
![Page 1: CYCLAMEN PESTS AND DISEASES - Chaseagrichaseagri.com/wp-content/uploads/2016/10/cyclamen... · •Daconil Ultrex (M5-chlorothalonil) Do not use when flowers are present. ANTHRACNOSE](https://reader034.vdocuments.us/reader034/viewer/2022050212/5f5e772a8a22307f2d0fa6c1/html5/thumbnails/1.jpg)
CYCLAMEN PESTS AND DISEASES
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PESTS
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APHIDS
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E-GRO ALERT ON APHIDS - DAN GILREIN
NEONICOTINOIDS(DRENCH PREVENTATIVELY OR
SPRAY CURATIVELY)MAINSPRING
ARIA
ALSO MENTIONS: ENDEAVOR, KONTOS, M-PEDE AND HORTICULTURAL OILS
(BE CAREFUL WITH KONTOS, M-PEDE AND OILS-CROP SAFETY)
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CATERPILLAR
Photos courtesy Gilrein
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CONSERVEOVERTURE
PYLONPYRETHROIDS
ADEPTPEDESTAL
E-GRO ALERT ON CATERPILLARS - DAN GILREIN
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CYCLAMEN MITE
Photos courtesy Verges
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CYCLAMEN MITE
Photos courtesy Gilrein
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Pylon, Judo, Sanmite, Avid and Akari
Be careful with these products since they may not all be safe on
cyclamen
E-GRO ALERT ON BROADMITES - DAN GILREIN
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TWO-SPOTTED SPIDER MITES
Photo courtesy Daughtrey
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THRIPS
Photo courtesy Verges
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0
5
10
15
20
untre
ated
Mallet
Conse
rve
Mesuro
l
Mavrik Aria Avid
Mainsp
ring
3.43.13.53.2
0.81
4.5
6.1
10.4
1.6
3.42.2
3.7
87.2 6.8
5.2
10.7
13.1
18.3
12.6
6.6
15.8June 17July 7July 13
WFT CONTROL ON SOLIDAGO
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MALLET (IMIDACLOPRID)CONSERVE (SPINOSAD)
MESUROL (METHIOCARB)MAVRIK (TAU-FLUVALINATE)
ARIA (=KONTOS - SPIROTETRAMET) AVID (ABAMECTIN)
MAINSPRING (CYANOTRANILIPROLE)
WFT CONTROL ON SOLIDAGO
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DISEASES
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COLLETOTRICHUM ANTHRACNOSE
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0.0
12.5
25.0
37.5
50.0N
onin
oc
Inoc
Her
2
Her
4
Pal
l2
Pal
l4
Pal
l6
Dac
1.4
Med
4
14.3
0.02.43.7
13.1
4.53.0
49.5
0.0
PREVENTION OF ANTHRACNOSE
Five sprays on a 7-day interval
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•Palladium (12-fludioxonil and 9-cyprodinil)
•Pageant Intrinsic (11-pyraclostrobin and 7-boscalid) or Heritage (11-azoxystrobin)
•Daconil Ultrex (M5-chlorothalonil) Do not use when flowers are present.
ANTHRACNOSE ROTATION ROTATION
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BOTRYTIS BLIGHT
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1.91.5 1.5 1.5 1.4
1.1 1 1
2.3 2.4
1.6
0.60.2 0
1.1
0 0 0.1
0.8
0.10
0.51
1.52
2.53
Water
Exp1-x
Exp1-2
x
Exp1-3
x
Sporan-6
4
Pallad
ium-4
Medallio
n-4 Gas
Ultra Pure
Oil-0.5%
Ultra Pure
Oil-1%
Cyclamen Pansy
ERADICATION OF BOTRYTIS ON FLOWERS
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BOTRYTIS ROTATION•Decree (17-fenhexamid)
•Daconil Ultrex (M5-chlorothalonil) Do not use when flowers are present.
•Palladium (12 and 9 – fludioxonil and cyprodinil)
•Chipco 26019, 26GT (2-iprodione)
•Pageant Intrinsic (11 and 7-pyraclostrobin and boscalid)
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ERWINIA SOFT ROT
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KleenGrow (nc-quaternary ammonium)
Agri-Mycin (antibiotic-streptomycin sulfate)
Copper (M1-copper) including:Camelot O, CuPRO and Phyton 27
ERWINIA ROTATION
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FUSARIUM WILT ON CYCLAMEN
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0.0
1.0
2.0
3.0
4.0
Nonino
cIno
c
Insign
ia-8
Insign
ia-16
Pagea
nt-12
.5
Pagea
nt-18
.5
Medall
ion-2
Heritag
e-0.9
Compa
ss O
-2
3336
-16
2.2
1.7
2.01.8
1.11.1
2.01.8
3.4
1.0
Disease (1=none to 5=dead)
Seven drenches on a 14-day interval
CONTROL OF FUSARIUM WILT ON CYCLAMEN
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•Medallion (12-fludioxonil)
•Heritage**(11-azoxystrobin)(** drench rate is 0.9 oz/100 gal - use as heavy spray to apply at a high enough rate) or Pageant Intrinsic (11-pyraclostrobin and 7-boscalid) or Empress (11-pyraclostrobin)
•Terraguard (3-triflumizole)
FUSARIUM ROTATION
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INSV (TOSPOVIRUSES)
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PYTHIUM ROOT ROT
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PYTHIUM ROTATION•Subdue MAXX (4-mefenoxam) consider adding KleenGrow)
•Segway O (21-cyazofamid)
•Empress (11-pyraclostrobin)
•Terrazole or Truban (14-etridiazole)
•RootShield Plus (nc-Trichoderma harzianum T-22 and T. virens G41)
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NOT DISEASES
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12 GPN November 2009 www.gpnmag.com
Disease Pathogen Stage of Crop
Best Cultural Controls
Best Product Controls based on Chase Research Trials
Anthracnose Colletotrichum spp.
All stages Use healthy plugs; minimize leaf wetness
Insignia (or Pageant or Heritage), Phyton 27, Spectro
Anthracnose Cryptocline cyclaminis
All stages Use healthy plugs; minimize leaf wetness
Insignia, Medallion
Botrytis blight Botrytis cinerea Throughout entire crop cycle but especially when flowering
Avoid leaf and flower wetting; remove infected flowers to prevent leaf infections; keep emitters away from base of plant
Chipco 26019, Decree, Medallion and Pageant; Daconil if not in flower
Erwinia blight Pectobacterium carotovorum (also, Erwinia carotovora)
Propagation through finishing
Keep leaves dry, especially during warmer weather; avoid stress and wounds (fungus gnats); plant at proper depth
Nothing effective; avoid stress, keep plant foliage as dry as possible and do not overwater
Fusarium wilt Fusarium oxysporum f. sp. cyclaminis
Finishing, sometimes during plug production as root rot
Sanitation between crops; do not drought stress; keep pH above 6, avoid use of ammonium fertilizers
Terraguard, Heritage (or Insignia), Medallion
Pythium root rot and blight
Pythium sp. Plug production, primarily
Use new flats, pots and potting media; use a well-drained growing mix
Segway and Subdue MAXX (resistance is possible), etridiazole (e.g., Truban and Terrazole)
Virus INSV and TSWV Finishing Control thrips; there can be a two-month period between infection and symptoms
None available; manage the thrips vector and eliminate weed or crop reservoirs of virus
In this issue, we present a summary of diseases that occur in cyclamen. Remember: Product controls are based on Chase Horticultural Research trials and do not reflect an endorsement of any sort.
— A.R. Chase is president and pathologist of Chase Horticultural Research, Inc. and can be reached at [email protected]. Margery L. Daughtrey is senior extension associate at Cornell University’s Long Island Horticultural Research & Extension Center and can be reached at [email protected].
this month in diseases
cyclamenBy A.R. Chase and Margery Daughtrey
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....There is always a practical solution
QUESTIONS???