new slugs and snails: know your enemy · 2017. 8. 8. · slug and snail control strategy •reduce...
TRANSCRIPT
![Page 1: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/1.jpg)
Slugs and Snails:
Know Your Enemy
Claudia Groth
Master Gardener Program Instructor [email protected]
![Page 2: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/2.jpg)
Slugs and Snails ─
What are they good
for?
Ph
oto
: N
atu
re P
ub
lish
ing G
rou
p
![Page 3: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/3.jpg)
The banana slug is a native
Forest dweller not a garden pest
Ariolimax columbianus
Robin Rosetta
Oregon State University
![Page 4: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/4.jpg)
The colorful European Red Slug
Comes in many colors
Arion rufus
Note red “skirt”
Ph
oto
© 2
00
9 W
alter
Sie
gm
und W
ikim
edia
GF
DL
![Page 5: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/5.jpg)
A cannibal – Great Gray Garden Slug
Leopard spots – tiger stripes
Limax maximus
![Page 6: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/6.jpg)
The bad guy – Gray Garden Slug
Smallest – very destructive
Deroceras reticulatum
![Page 7: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/7.jpg)
Interesting – shelled slug
Testacella haliotidea
Photos: Ron Oberg
![Page 8: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/8.jpg)
More every day! Brown Garden Snail
Cornu aspersum (formerly Cantareus aspersus, Helix aspersa, and Cryptomphalus aspersus)
![Page 9: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/9.jpg)
Not to be mistaken for . . .
© 2005 Kristiina Ovaska
Pacific Sideband
Monadenia fidelis
Brown Garden Snail
Cornu aspersum
Ph
oto
: R
ob
in R
ose
tta
![Page 10: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/10.jpg)
New ones keep coming
Ghost slug (Selenochlamys ysbryda)
Triboniophorus aff. graeffei,
![Page 11: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/11.jpg)
Your Basic Slug
Tentacles
Tentacles
Foot
Mantle
Breathing hole
Skirt
Photo: Rosetta
Photo
: R
osetta
![Page 12: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/12.jpg)
Your Basic Snail
Shell Tentacles
Foot Tentacles
Ph
oto
: S
imo
n W
a c
c-b
y-2
.0
![Page 13: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/13.jpg)
A most destructive garden pest
• Eating – Rasping “tongue”
– What?
– How much?
![Page 14: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/14.jpg)
Could be mistaken for . . .
Imported cabbageworm
Ph
oto
Cre
dit: Jo
hn
ny S
tark
Ph
oto
cre
dit M
ich
ae
l M
asiu
k
Black vine weevil
![Page 15: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/15.jpg)
Understanding Slugs and Snails
• Moisture
• Temperature
• Night vs. day
• Light
• Territorial
• Strength
• Speed
![Page 16: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/16.jpg)
Mating efficiency makes more!
– Primarily in fall
– Hermaphrodites
Ph
oto
© 2
00
8 R
asbak W
ikim
ed
ia G
FD
L
![Page 17: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/17.jpg)
Egg laying on their terms
500 eggs per season !
![Page 18: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/18.jpg)
What if all the eggs survived!!
• Lifespan – 1 – 6 years
– 500 eggs per season
![Page 19: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/19.jpg)
Can We Prevent Attack?
Slug Resistant Plants?
![Page 20: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/20.jpg)
Limit problems with plant choices
• Slugs avoid eating – Astilbe
– Bleeding Hearts
– Candytuft (evergreen)
– Ferns
– Foxglove
– Hens and chicks
– Impatiens
– Ivy
– Sedum
– Solomon’s seal
– Sweet woodruff
– Wintergreen (teaberry)
• Slugs love to eat – Daffodils
– Hosta
– Lettuce
– Lilies
– Lobelia (perennial)
– Narcissus
– Primroses
– Strawberries
– Trillium
– Tuberous begonias
– Wild ginger
![Page 21: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/21.jpg)
Do you know where they are?
• Location
• Location
• Location
![Page 22: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/22.jpg)
• Cultural and Physical – Timing of watering
– Sanitation
– Mulch or no mulch?
– Tilling/hoeing
– Hand Picking
Options for control
![Page 23: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/23.jpg)
An ounce of protection
• Barriers – Copper strips/netting/sprays – Lime, ashes, diatomaceous earth
• Solarization
![Page 24: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/24.jpg)
Another ounce of protection
• Predators – Encourage diversity
• Toads, salamanders, newts • Snakes • Beetles, millipedes, marsh flies • Foxes, porcupines, raccoons
• Frogs • Birds, ducks
![Page 25: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/25.jpg)
Divert them from your plants
• Traps – Pit Traps
• Purchased/homemade
– Boards
– Citrus/Melon
– Pots
![Page 26: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/26.jpg)
Give them an alternative
Baits – Beer
– Yeast (brewer’s)
– Lettuce
– Corn Meal
– Bran
![Page 27: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/27.jpg)
Now that you have them . . . . .
. . . what do you do with them? – Soapy water??
– Ammonia
– Vinegar
– Out in the trash
– Into the freezer
![Page 28: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/28.jpg)
Have them go somewhere else
• Repellent products – plant extracts
• Neem
• Garlic
• Peppermint
• Rosemary
• Cinnamon oil
– copper
![Page 29: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/29.jpg)
But you have to hit them
Botanicals – Dazitol
• Capsaicin and mustard oil
– All Natural • Plant extracts
![Page 30: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/30.jpg)
Okay, you can poison them
• Commercial Baits – Metaldehyde
• (Deadline, Ortho, etc.)
– Iron phosphate
• (Whitney Farms, Sluggo, Escar-Go, etc.)
– Sodium Ferric EDTA
• (Corry’s, Dr. T’s Slug & Snail Killer)
![Page 31: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/31.jpg)
Okay, you can poison them
• Commercial Baits – Placement
• location, location, location
– Timing • Fall, Spring, Summer, if irrigating
![Page 32: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/32.jpg)
Using the correct amount
For example, Sluggo
1 2 3 5 6 7 4
•As the label suggests •Not in piles
![Page 33: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/33.jpg)
Slug and Snail Control Strategy
• Reduce – not eradicate
• Combine and customize methods – Fall is the most effective time
• Prevent egg-laying
– Throughout the season • Barriers, baits, traps
– Till, when appropriate
– Sanitation always
– Extra measures for favored plants
![Page 34: New Slugs and Snails: Know Your Enemy · 2017. 8. 8. · Slug and Snail Control Strategy •Reduce – not eradicate •Combine and customize methods –Fall is the most effective](https://reader034.vdocument.in/reader034/viewer/2022052104/603ebdf3ea23e3727a2f6d4b/html5/thumbnails/34.jpg)
…keep on following that slime trail!
Claudia Groth Master Gardener Program Instructor [email protected]