integrated pest management: the strawberry perspectivecesantacruz.ucanr.edu/files/208136.pdf ·...
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Integrated Pest Management: The strawberry perspective
Surendra Dara
Strawberry and Vegetable Crops Advisor and Affiliated IPM Advisor University of California Cooperative Extension
San Luis Obispo, Santa Barbara, and Ventura Counties
eNewsletters: ucanr.edu/strawberries-vegetables and ucanr.edu/pestnews
berriesnveggies.tumblr.com @calstrawberries @calveggies strawberriesvegetables
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IPMinfo smartphone app for iOS devices
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IPMinfo smartphone app for iOS devices
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IPMinfo smartphone app for iOS devices
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Integrated Pest Management “Integrated pest management (IPM) is an ecosystem-based strategy that focuses on long-term prevention of pests or their damage through a combination of techniques such as biological control, habitat manipulation, modification of cultural practices, and use of resistant varieties. Pesticides are used only after monitoring indicates they are needed according to established guidelines, and treatments are made with the goal of removing only the target organism. Pest control materials are selected and applied in a manner that minimizes risks to human health, beneficial and non-target organisms, and the environment.” UC IPM
Habitat Manipulation
Resistant Varieties
Cultural Practices
Natural Enemies
Chemical Control
Chemical Control
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IPM and its components
MANAGEMENT/ CONTROL
Cultural
Chemical
Biological
Microbial
Mechanical
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IPM and its components
PLANNING & ORGANIZATION
KNOWLEDGE & RESOURCES
COMMUNICA-TION
MANAGEMENT/ CONTROL
IPM
Cultural Within the community
Staying up-to-date
Within the group
Chemical
Actions
Managing Info
Pest
Control options
Biological
Monitoring Tools &
Technology
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Current pest management practices • Chemical pesticides • Biological control
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Current pest management practices • Low fences • Watering the road ways
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Current pest management practices • Bug vacuums
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UC IPM Recommendations
• Cultural control • Chemical control • Biological control • Microbial control
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IPM-Cultural Control • Selection of the field • Avoiding second year berries • Managing weeds and alternate hosts that serve as
sources of pest populations • Adequate chilling of transplants • Obtaining transplants from a clean source • Irrigation management • Nutrition management • Regular monitoring
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IPM-Chemical Control
• Choosing the right chemical • Rotating different modes of action to reduce the risk
of resistance • Reducing the number of chemical applications and
using other alternatives • Using softer chemicals to conserve natural enemies • Test for resistance
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IPM-Biological and Microbial Control • Timing chemical sprays to conserve released or native
natural enemies • Choosing the right species at the
right time
• Multiple natural enemies for different life stages of pest
Phytoseiulus persimilis
Neoseiulus californicus
Lygus adult killed by Beauveria bassiana Peristenus stygicus on lygus nymph
www.state.nj.us
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Pesticides
0
50000
100000
150000
200000
250000
Chemical Bt Other Bio-Botanical
AI a
gain
st a
rthr
opod
s (lb
)
http://www.cdpr.ca.gov/docs/pur/pur12rep/comrpt12.pdf
Pesticide use in California strawberries
0
10000
20000
30000
40000
0
2,500,000
5,000,000
7,500,000
10,000,000
12,500,000
15,000,000
2008 2009 2010 2011 2012
Acre
s
Poun
ds o
f AI
Pounds of all pesticide AI Acres harvested
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IPM field studies Can we use non-chemical alternatives in conventional agriculture along with chemical pesticides to develop a sound IPM program?
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Chemicals-Mode of action groups
4A Neonicotinoids 4C Sulfoximines 6 Chloride channel activators 9C Selective homopteran feeding blockers 15 Inhibitors of chitin biosynthesis
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Non-chemical alternatives
• Entomopathogenic fungi, Beauveria bassiana and Metarhizium brunneum
• Botanical insect growth regulator, azadirachtin
• Diatomaceous earth
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Entomopathogenic fungus mode of action
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Azadirachtin mode of action
• Interferes with protein synthesis • Affects molting and metamorphosis • Disturbs mating and sexual communication • Sterilizes adults • Reduces reproductive ability • Acts as antifeedant and repellent
http://files.meistermedia.net/cpd/images/structures/largeview/azadirachtin.gif
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Diatomaceous earth mode of action
• Powder form of fossilized remains of diatoms (contains silicon dioxide)
• Absorbs waxy layer of insect cuticle causing water loss
• Causes death due to desiccation
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Lygus bug management study 1st application (Rate/acre) 2nd application (Rate/acre) 3rd application (Rate/acre)
1 Untreated Untreated Untreated 2 Assail 70 WP (3 oz) 4A* Assail 70 WP (3 oz) 4A Assail 70 WP (3 oz) 4A 3 Rimon 0.83 EC (12 fl oz) 15 +
Assail 30SG (6.9 oz) 4A Rimon 0.83 EC (12 fl oz) 15 + Sequoia SC (4.5 fl oz) 4C
Rimon 0.83 EC (12 fl oz) 15 + Assail 30SG (6.9 oz) 4A
4 Rimon 0.83 EC (12 fl oz) 15 + Brigade (16 oz) 3A
BotaniGard ES (2 qrt) + Molt-X (8 fl oz)
BotaniGard ES (2 qrt) + Molt-X (8 fl oz)
5 Rimon 0.83 EC (12 fl oz) 15 + Assail 30SG (6.9 oz) 4A
Rimon 0.83 EC (12 fl oz) 15 + Beleaf 50 SG (2.8 oz) 9C
Rimon 0.83 EC (12 fl oz) 15 + Assail 30SG (6.9 oz) 4A
6 BotaniGard ES (2 qrt) + Molt-X (8 fl oz)
BotaniGard ES (2 qrt) + Low Beleaf 50 SG (1.4 oz) 9C
Low BotaniGard ES (1 qrt) + Low Sequoia (3 oz) 4C
7 Actara (4 oz) 4A Actara (4 oz) 4A + Agri-Mek SC (3.5 fl oz) 6
BotaniGard ES (2 qrt) + Molt-X (8 fl oz)
8 High Sequoia (4.5 oz) 4C High Sequoia (4.5 oz) 4C High Sequoia (4.5 oz) 4C
9 Low Sequoia (3 oz) 4C Low Sequoia (3 oz) 4C Low Sequoia (3 oz) 4C
10 High Diafil 610 Slurry (70 lb) Low BotaniGard ES (1 qrt) + Low Sequoia (3 oz) 4C
Met52 EC(16 fl oz) + Assail 70 WP (3 oz) 4A
11 Low Diafil 610 Slurry (35 lb) Low Sequoia (3 oz) 4C + Molt-X (8 fl oz)
Met52 EC(16 fl oz)
12 High Diafil 610 Dust (70 lb) Low BotaniGard ES (1 qrt) + Assail 70 WP (3 oz) 4A
Met52 EC (16 fl oz) + Molt-X (8 fl oz)
*MoA group 4A Neonicotinoids 4C Sulfoximines
6 Chloride channel activators 9C Selective homopteran feeding blockers
15 Inhibitors of chitin biosynthesis
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2014 Strawberry IPM trial Goodwin Berry Farms, Santa Maria
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Treatments and sampling • Treatments applied on 4, 12, and 20 June, 2014 • Spray volume was 110 gpa for all treatments,
but diatomaceous earth slurry (70 gpa) • Sampled 5-6 days after each application
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0
2
4
6
Num
ber o
f all
stag
es/2
0 pl
ants
Pre-treatment Post-treatment
Strawberry IPM Trial 2014-Lygus bug
ab b
ab ab
ab
ab ab
a
ab ab
ab
ab
Tukey’s HSD P < 0.05
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Strawberry IPM Trial 2014-Lygus bug
0
200
400
600
800
1000
1200
Percent change in lygus numbers after three sprays
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Strawberry IPM Trial 2014-Lygus bug Rank %Change I Spray II Spray III Spray
I 14 Sequoia High Sequoia High Sequoia High
II 17 Diafil Dust High BotaniGard Low + Assail 70WP
Met52 + Molt-X
III 48 Rimon + Assail 30SG
Rimon + Beleaf 50SG
Rimon + Assail 30SG
IV 54 Rimon + Brigade
BotaniGard ES + Molt-X
BotaniGard ES + Molt-X
V 81 Sequoia Low Sequoia Low Sequoia Low
VI 143 Diafil Slurry High Sequoia Low + BotaniGard ES Low
Met52 + Assail 70WP
VII 167 Rimon + Assail 30SG
Rimon + Sequoia High
Rimon + Assail 30SG
VIII 280 Actara Actara + Agri-Mek
BotaniGard ES + Molt-X
IX 307 BotaniGard ES + Molt-X
BotaniGard ES + Beleaf 50SG Low
BotaniGard ES Low + Sequoia Low
X 367 Diafil Slurry Low Sequoia Low Met52 + Molt-X
XI 383 Untreated Untreated Untreated XII 1083 Assail 70WP Assail 70WP Assail 70WP
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Strawberry IPM Trial 2014-Natural Enemies
Tukey’s HSD P < 0.05
0
20
40
60
80
Num
ber o
f nat
ural
ene
mie
s/20
pla
nts
Pre-treatment Post-treatment
a
d
abc cd
d d
ab
cd bcd bc bc
bcd
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Strawberry IPM Trial 2014
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Strawberry Miticide Trial 2013 Treatments 1. Untreated 2. Acramite 50 WS (bifenazate) 1 lb 3. Agri-Mek SC (abamectin) 4.29 fl oz 4. BotaniGard ES (B. bassiana) 1qrt + Acramite 0.75 lb 5. Eco-Mite 1% (rosemary and cotton seed oils) 6. Fujimite 5 EC (fenpyroximate) 2 pt 7. Fujimite XLO 2 pt 8. Grandevo (C. subtsugae) 2 lb 9. Venerate (Burkholderia spp.) 2 gal 10. Nealta (cyflumetofen) 13.7 fl oz Spraying 150 gal/acre at 70 psi with hollow cone nozzle
Plot size 14’ longX44” wide bed replicated 4 times
Treated on May 16 and 25, 2013
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0
20
40
60
80
100
120
Post
-tre
atm
ent n
umbe
r/le
afle
t
Eggs Mobile
Strawberry Miticide Trial 2013-TSSM
P > 0.05
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Strawberry Miticide Trial 2013-TSSM
0
20
40
60
80
100
120
140
Num
ber/
leaf
let
Post-treatment-Eggs + Mobile Stages
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Strawberry Miticide Trial 2013-Predatory Mites
0
1
2
3
4
5
Num
ber/
leaf
let
Post-treatment-Predatory Mite Eggs + Mobile Stages
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Conclusions • Integrating various tools is critical in pest management. • Botanical and microbial pesticides can be an important
addition to chemical pest management options.
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Acknowledgements
Technicians Andrew Reade Anthony Reade Michael McNulty Ryan Sheppard Suchitra Dara Sumanth Dara
Growers David Peck Francisco Bautista
Industry collaborators Arborjet BASF Bioworks Chemtura Dow AgroSciences Imerys Marrone Bio Innovations Monsanto BioAg Nichino America Syngenta