Posts Tagged: snails
Using Integrated Pest Management to Control Slugs and Snails
Our rainy spring weather has been great for our gardens – but may also have encouraged some...
Spring Is Springing!
By Penny Pawl, UC Master Gardener of Napa County Winter isn't over, but in...
Bearded iris. (garden.org)
Do your weeding before seeds set! (doctorgreen.com)
Weed torches are especially useful in gravel and hardscape. (mow-n-blow.com)
Sheet composting is a sure-fire way to reduce weeds in garden beds. (reachnettings.com)
Cut a hole in the cardboard when ready to plant. (pinterest.com)
NOW is the time for pruning, and also for bare root planting. (calendarzoom.com)
Consider California Native Plants. (volunteermatch.org)
Snails and slugs are destructive. (flickr.com)
Use a headlamp or flashlight to hunt snails at night. (flashlightsunlimited.com)
Now is a good time to replace soil in containers. (theparsimoniousprincess.blogspot.com)
The seed packet is packed with information. (104homestead.com)
Plastic containers make great temporary greenhouses--be sure to hold in place with a stick. (thriftyfun.com)
Soon YOUR backyard will be ready for its spring closeup! (thegardenglove.com)
Strawberries from Your Garden.
By Susanne von Rosenberg, UC Master Gardener of Napa County January is a great time of...
Strawberries. (fitnessandwellnessnews.com)
Strawberries in the backyard (or front yard.).jpg. (pinterest.com)
Little or big, no correlation to taste. (wholesalesuppliesplus.com)
Albion strawberries, day neutral. (oregon-strawberries.org)
Sequoia strawberry, ever bearing. (bobwellsnursery.com)
Seascape strawberry, day neutral. (jacksonandperkins.com)
Chandler strawberry, June bearing. (noursefarms.com)
Buy them bare-root. (etsy.com)
Strawberry propagation. (steemit.com)
Slugs and snails love strawberries just as much as we dol. (ucanr.edu)
Use drip irrigation if you can on strawberries. (yourconroenewscom)
Strawberries from your garden--yum! (nydecay.org)
Caring for Citrus in Fall
[From the UC IPM blog Pests in the Urban Landscape] Citrus trees need care...
Eat Bread, Snails!
Slugs and snails, destructors of crops and gardens,
could be
controlled by bread dough
CORVALLIS, Ore. – New research from Oregon State University Extension Service found slugs and snails are strongly attracted to bread dough, a discovery that could lead to better ways of controlling these serious pests of agriculture, nurseries and home gardens.
Since the beginning of recorded history, slugs have ravaged crops and today are responsible for billions of dollars in damage – including between $60-$100 million to Oregon's valuable grass seed industry alone, according to Rory Mc Donnell, associate professor and Extension gastropod specialist.
“Damage to grass seed is a major issue,” said Mc Donnell, who collaborated with scientists from other states on a study that was published in a special issue of Insects that focuses on slugs and snails. “But that's just one crop. It's mind boggling when you think about it. A huge array of crops is affected. They even take out specialty crops like mint. Many times, I've seen farmers lose an entire crop.”
Currently, nurseries, farmers and home gardeners use commercial baits like metaldehyde, iron phosphate or sodium ferric EDTA to control slugs and snails. These molluscicides are relatively expensive, can be toxic to non-targets and work with varying degrees of success, Mc Donnell said. Given its simplicity, low cost and the ready availability of its ingredients, bread dough has potential not only for crop protection in the United States but also for developing countries where access to pesticides is limited by cost. A dry formulation would likely have an indefinite shelf life and be easy to ship. It can be used to attract the slugs to a trap, where they will die, or to attract them to a molluscicides.
“Bread dough is a nontoxic, generic and effective tool that could be used in the detection and management of gastropods worldwide,” Mc Donnell said. “It represents a tool to aid in managing pest gastropod infestations, either using baited traps or in attract-and-kill approaches. It could also be incorporated into existing baits to improve their attractiveness.”
Of the 28 exotic or non-native slug and snail species in Oregon two are particularly troublesome – European brown garden snails (Cornu aspersum) and gray field slugs (Deroceras reticulatum), which plague nurseries and feed on hundreds of important crops with significant financial cost. If European brown garden snails are found in shipments of Oregon nursery plants at ports of entry in other states, the items are either shipped back or treated in place, Mc Donnell said. Either way it's expensive.
“With worldwide trade and travel, we are getting a homogenization of slugs and snails on planet Earth because of the widespread introduction of species,” Mc Donnell said. “This is not just a modern phenomenon. Slugs and snails have been traveling with humans for thousands of years. But it's getting more severe because of purposeful introductions, global trade, intensification of agriculture and development of new crops.”
Mc Donnell and his collaborators haven't determined yet why bread dough – a simple mixture of flour, water and yeast – attracts slugs and snails, but theorize that it is the fermentation process that draws them. They used a range of food in addition to bread dough to determine which would be the most attractive bait, including beer, cucumber, lettuce, strawberries, citrus, tomatoes, hostas and Marmite (a yeast-based food product popular in Great Britain).
“We gave them a choice of food and they consistently went for the bread dough,” Mc Donnell said. “They really, really like it. They went bonkers for it. Bread dough outperformed everything.”
In one instance, over 18,000 snails were trapped in 48 hours, according to Mc Donnell. The research revealed the bread dough can be effective in the field in Oregon for at least eight days.
“It has something we call ‘good field life,'” Mc Donnell said. “That's really, really important. If it worked for 12 hours, that would be good, but eight days gives a much bigger window for use.”
The project was a collaboration between Mc Donnell and his team; Robin Veasey and Jocelyn Millar, University of California at Riverside; Arnold Hara, University of Hawaii at Hilo; Amy Roda, U.S. Department of Agriculture, Miami; Gary Adams, U.S. Department of Agriculture, Billings, Mont.; and Ian Foley, Montana Department of Agriculture. This work was supported by funding from the U.S. Department of Agriculture under the Plant Protection Act Section 7721.
snails copper band