Managing Sucking Insects and Weeds That.. · Compatible with honey and bumble bees - it can be used...
Transcript of Managing Sucking Insects and Weeds That.. · Compatible with honey and bumble bees - it can be used...
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Todd Lowe
Apr 25, 2019
Managing Sucking
Insects and Weeds
That...Suck
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2
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3
Integrated Weed Management
Cultural
Nutritional
Soil
Water
Chemical
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Herbicides
Preemergence (Preventative)
Applied before weed emerges from turf
Postemergence (Curative)
Applied after weed emerges from turf
Photos: Bayer
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Specticle
Indaziflam Chemical Name: N-[(1R,2S)-2,3-dihydro-2,6-dimethyl-1H-inden-1-yl]-6-(1-fluoroethyl)-1,3,5-
triazine-2,4-diamine
Cellulose biosynthesis inhibitor (CBI)
Inhibits crystalline cellulose deposition in the plant cell wall affecting cell wall formation, division and
elongation – meristems, expanding cells & growing roots
Affects weed root development (little or no effect on developed leaves and other tissues)
Labelled for golf courses, lawns, parks, cemetaries, sod farms and sports fields
Indaziflam has some early postemergence control on Poa, crabgrass, VA Buttonweed, Others?
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Site of Uptake
Affects shoot only
Dinitroanalines & Dithiopyr
Affects shoot & root
Ronstar Specticle
Affects root only
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Soil Sorption (Koc) of Herbicides
2
110
200
496
3200
0 1000 2000 3000
Dicamba
Atrazine/simazine
Metolachlor (Pennant)
Indaziflam (Specticle)
Oxadiazon (Ronstar)
Prodiamine (Barricade)
13,999
<100 ml/g is low sorption, thus more likely
to leach in low OM soil.
>500 ml/g less likely to leach
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Water Solubility (ppm) or PRE Herbicides
2.8
2.6
1.4
0.7
0.275
0.013
0 1 2 3
Indaziflam (Specticle)
Oryzalin (Surflan)
Dithiopyr (Dimension)
Oxadiazon (Ronstar)
Pendimethalin (Pendulum)
Prodiamine (Barricade)
Relative Solubility Water Solubility (ppm)
Very soluble 1,000 to 10,000
Moderate 100 to 1,000
Low 10 to 100
Very low 1 to 10
Extremely low 0.1 to 1
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OM
Particle
Soil
particle
OM
Particle
Soil
particle
Soil
particle
Soil
particle
Soil
particle
Soil
particle
OM
Particle
OM
Particle
Soil
particle
Shoot
Root
Seed
II
I
Specticle in the Soil
I
I
I
I
Specticle Adsorbedto soil and OM particles- Finer particles- Drier conditions
Specticle Desorbedfrom soil and OM particles- Coarser particles- Wetter conditions
II
II
OM
Particle
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Preemergence Herbicide Degradation
0
10
20
30
40
50
60
70
80
90
100
1 2 3 4 5 6 7
Herbicide Concentration in
soil
Time
Concentration needed for
weed control
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Preemergence Herbicide Degradation
0
10
20
30
40
50
60
70
80
90
100
1 2 3 4 5 6 7
Herbicide Concentration in
soil
Time
DNA’s
Concentration needed for
weed control
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Preemergence Herbicide Degradation
0
10
20
30
40
50
60
70
80
90
100
1 2 3 4 5 6 7
Herbicide Concentration in
soil
Time
Specticle
DNA’s
Concentration needed for
weed control
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Split applications
0
10
20
30
40
50
60
70
80
90
100
1 2 3 4 5 6 7
Herbicide Concentration in
soil
Time
Concentration needed for
weed control
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E=Excellent (>89%) G=Good (80 to 89%) F=Fair (70 to 79%)
Herbicide Crabgrass Goosegrass
Balan (benefin) G F
Barricade (prodiamine) E F-G
Betasan/Bensumec (bensulide) G F
Dimension (dithiopyr) E G
Pendulum (pendimethalin) E F-G
Ronstar (oxadiazon) G E
Specticle (indaziflam) E E
Surflan (oryzalin) E F-G
Bert McCarty, Clemson University
Preemergence Herbicide Comparison - Weed Control
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Herbicide Effects on Rooting* Residual Green Use
Barricade poor good NR
Betasan/Bensumec poor good R**
Dimension poor good R**
Pendimethalin poor good R**
Ronstar none good R**
Specticle poor excellent NR
Surflan poor good NR
Bert McCarty, Clemson University
Preemergence Herbicide Comparison
*Refers to non-established turf only
**R=Some formulations are registered
NR=Not registered for green use.
Consult label for overseeding grass tolerance.
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Production Information
SPECTICLE G LABEL UPDATE
17
Key Changes
Added sod farms and sports fields
Added seashore paspalum
Added natural areas as new use site
Sprigging - changed from recommending sprigged areas be treated no sooner than 16 months
after sprigging to 10 to 12 months after depending on rates
More Weeds…
Now labeled for 98 weeds – Up from 84 weeds
More Tolerant Plants…
Now 281 tolerant plants on – Up from 122 plants
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///////////
Altus®
Lawn & Landscape
Product Overview
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Altus® Insecticide
Highly effective on sucking insects on ornamentals
Compatible with honey and bumble bees - it can be
used prior, during, or after bloom
Foliar spray primarily, can be drenched on annuals
Photos: Bayer
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Stemofoline
Flupyradifurone, the active ingredient in Altus®, was
inspired by the natural product stemofoline – a
derivate from the Asian plant Stemona japonica
20
Innovative pest control that is inspired by nature and compatible with integrated pest management
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Butenolides
21
The butenolide structure dictates a novel binding site in the insects nervous system making
Altus® chemically unique from neonicotinoid chemistries.
Neonicotinoids (4A) Sulfoximines (4C) Butenolides (4D)
N-Nitroguanidines Nitromethylenes
Imidacloprid NitenpyramThiamethoxam
ClothianidinDinotefuran
N-Cyanoamidines
Thiacloprid (E = SCH2CH2)
Acetamiprid (E = CH3)
Sulfoxaflor Flupyradifurone
N#
##
N#
NNO
2
N#
##
N#
NO2
E
#
N#
NCN
N
S
F3C
N
O
CN
N
F
F
O
N
Cl
O
Altus® = 1st
butenolide
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Systemic
Systemic – moves upward
through the xylem
Translaminar – moves to adjacent
plant cells so will control insects
feeding on the underside even
when applied only to the upper
leaf surface
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Honey/Bumble Bee Compatible
Take home message about bees
No Bee Box
Approved for application before,
during, and after bloom
Increased flexibility in application
timing
23 Photo: Bayer
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Effective
Aphids
Lace bugs
Leafhoppers
Leaf miners (suppression; feeding damage)
reduction
Mealybugs
Plant Bugs
Psyllids
Scales
Thrips (suppression; feeding damage reduction)
White Flies
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Additional Problems:
honey dew, sooty mold & ants
Photos: Bayer
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Time it takes for complete control?
Insect mortality doesn’t happen immediately
Insects stop feeding quickly, within hours
Takes hours to days to see fewer insects on plants
but they are no longer damaging plants
Aphids
Mortality within hours after a foliar application (24-
48 hrs)
Other sucking insects including scales, mealybugs
and whiteflies
Mortality for whiteflies took up to 5 days in some
demo trials
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Rapid Feeding Cessation in Aphids
0
20
40
60
80
100
pre 30 60 90 120 150 180 210 240
Ho
ney
dew
Exc
reti
on
Rel
ativ
e to
P
re-a
pp
licat
ion
Lev
els
(%)
minutes
Altus Thiamethoxam Untreated
Source: Internal Bayer Study
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28
Aphid Research
Photo: Bayer
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Efficacy: Altus® vs. Aphids on Impatiens
a
a
a
b b b b b
a
bb b bb b b b
b
0
20
40
60
80
8 DAA 11 DAA 15 DAA 22 DAA 29 DAA 36 DAA 43 DAA
Aphid
num
ber
per
pla
nt
UTC Safari16 oz/100 G
Altus10.5 oz/100 G
Altus7 oz/ 100 G
a
Erfan Vafaie, Texas A&M: IE17USAKYIERN1Means followed by same letter do not significantly differ
(P=.05, Student-Newman-Keuls)
a
® ® ®
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30 Photo: Bayer
Scale Research
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Efficacy: Altus® vs. Juniper Scale on Juniper
31
A
AA AB
BC C
B BB B
BC C C
B
C C C0
5
10
15
20
25
30
35
0 DAA 3 DAA 7 DAA 14 DAA 21 DAA 28 DAA
Avg
# o
f S
cale
s
Days After Foliar Application (DAA)
UTC Safari®16 oz/A
Merit®6 oz/A
Altus®10.5 oz/A
Altus®14 oz/A
Addesso, Tennessee State University: IE16USAKYIEHJ2
Means followed by same letter do not significantly differ (P=.05, Student-Newman-Keuls)
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32Photo: Bayer
Lace Bug Research
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Efficacy: Azalea Lace Bug, Azalea
33
0
2
4
6
8
10
12
14
16
18
20
0 DAA 3 DAA 7 DAA 14 DAA 21 DAA 28 DAA
Lace b
ug n
um
be
r
UTC Talstar20 oz/A
Merit6 oz/A
Altus10.5 oz/A
Altus14 oz/A
Kris Braman, University of Georgia, IE16USAKYLEWL1
®®®®
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34
Photo: Bayer
Mealybug Research
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Efficacy: Madeira Mealybug on Coleus
Means followed by same letter do not significantly differ (P=.05,
Student-Newman-Keuls)Bayer internal trial: IE15USATCEETC3
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36Photo: UF Citrus Research & Education Center
Psyllid Research
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Efficacy: Altus® vs. Asian Citrus Psyllid on Orange
Vero Beach, Florida: IE16USAKYOEWL1
® ® ® ®
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Convenient
Sites
Landscape ornamentals
Landscape fruit and nut trees
Use Pattern
Foliar spray or drench (annuals)
Before, during and after bloom
IPM program compatible
PPE
Long sleeve shirt and long pants
Shoes and socks
Chemical resistant gloves
Signal word: Caution (reduced risk pesticide by EPA)