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Lynn Kunstman

May 31

Beneficial Insects You Need to Know – Part 2

By Beet 2023 06 June

Back in April you read Part 1 of this series about beneficial insects you can encourage in your yards. I discussed predatory insects: lacewings, mantids, ladybird beetles, pirate bugs and syrphid flies. All of these are active hunters of garden pests. Now we need to shift our focus to the parasitoids – those insects who parasitize other insects. In this instance, females of the parasite find a suitable host insect – usually a caterpillar – and lay their eggs directly in the body of the host.  The host remains alive while being eaten from the inside by the larvae of the parasite. Not a pleasant vision, but one uniquely designed by nature to maintain ecosystem balance. Examples of parasitoids are parasitic tachinid flies, braconid, chalcid, Ichneumonid and trichogramma wasps.

 

Tachinid flies are quite variable in appearance but are usually very bristly. Adult flies feed on nectar and are important pollinators in your garden. Female flies lay one to several eggs in a host caterpillar or similar larva.  Those eggs then hatch and the fly larvae feed on the living host until they are ready to pupate, at which point they emerge, finally killing the host insect.

 

 

 

 

 

 

Parasitic wasps range in size from small to minuscule and defend gardens against caterpillars like corn earworm, tomato fruit worm, cabbageworm, and tent caterpillars.

 

The parasitic wasp has a piercing ovipositor. She lays an egg on the aphid, and the larva eats the aphid, which is not dead. When you look at an aphid colony and see perfectly round holes in the abdomens of individuals, the wasps have completed their life cycle in the body of the aphid and emerged, leaving behind an aphid husk. If the aphids are tan-colored and fat, they are being actively parasitized. Don’t spray because the parasitoids are part of the cycle.

 

Trichogramma wasps

Are the smallest and one of the most popular beneficial wasps. They are much smaller than the other three parasitic wasps – like a speck of dust. Females lay up to 300 eggs, usually in the eggs of the host insect.  But some also lay eggs directly into the bodies of adult scale, aphids, beetles, psyllids and caterpillars such as cutworms, hornworms, corn earworms, and leafrollers. Trichogramma wasps can be purchased in nurseries and organic growing supply stores.

 

 

 

Braconid wasps lay eggs in caterpillars and aphids too – check for perfect circular holes in mummified aphids or pupating wasps on hornworms.

 

 

 

 

 

Chalcid wasps parasitize caterpillars of several different species, while

 

 

 

 

 

Ichneumonid wasps specialize primarily in tree pest insects.  Chalcid, Braconid and Icneumonid wasps are much larger than Trichogramma and parasitize caterpillars directly.

 

 

 

To attract all these beneficials into your yard, provide habitat in the form of native nectar plants from the sunflower, mint, and carrot families – native yarrow, biscuit root, and coyote mint.  Remember, tiny mouths need tiny, shallow flowers from which to drink.

 

Resources:

 

 

 

Apr 30

Beneficial Insects You Need to Know: Part 1

By Beet 2023 05 May

As a child, I had a pathological fear of any insects or spiders I encountered in the house.  I was fine with the giant garden spider that hung out in her orb web over my mother’s iris bed, but anything entering the home sent me into hysterical weeping and demands of action of my parental units to eliminate the perceived threat.  Fortunately, I have outgrown this phobia, and as an adult I even hate dispatching black widows and yellowjackets, although I do this if they pose a threat to my grandchildren.

How did this miraculous transformation come about?  Education.  The understanding of the importance of all life to well-functioning ecosystems has changed the way I view the world.

Unfortunately, many people still have that knee-jerk reaction that I had as a child to most invertebrates they see in their yards and homes.  And the response is to reach for the bottle of insect spray so easily found at every nursery and big box store or to call pest control.  This is a plea to everyone to please stop and consider the role these creatures play in nature’s functioning.  When you spray for one insect, you are killing all others in the vicinity, and thereby eliminating potential beneficial insects that might assist you in maintaining the health of your garden.

We are all familiar with ladybugs and praying mantids as good guys, but there are so many more. We will begin with the predators.  By way of introduction, here are a few examples:

 

Lacewings & Snakeflies

The larvae of both are voracious predators of aphids, whiteflies, leafhopper nymphs, scale, spider mites and more.  Look for lacewing eggs laid on stalks in your yard.

 

 

 

Our second most important pollinators are the flies.  Larvae eat garden pest species, while the adults are nectar feeders on small, shallow flowers in the Brassicaceae, Apiaceae, and Asteraceae families.

 

 

 

True bugs – Minute Pirate bug, Big-Eyed Bug and Damsel Bug

All eat a wide variety of pests, in all stages of their life cycle.  To attract these, plant marigolds, native goldenrod, native biscuitroot, native buckwheat, cosmos, or native yarrow.

 

 

 

 

 

Beetles:  Ladybug, Rove Beetle, Soldier Beetle, and Ground Beetle.

 

 

 

Ditch the sprays and encourage these hunting insects by providing rock and wood piles for habitat and leaving the leaves to over winter under your shrubs and trees.  Plant native bunch grasses, native ground covers and native perennial plants near these “beetle berms.”  They will reward you with a garden with far fewer pest species.  A yard in balance does not need poisons.

In the coming editions of the Garden Beet, I will talk about two remaining groups of beneficial insects: parasitoids and pollinators.

Garden for Life!

Apr 30

Come to the After Sale!

By Beet 2023 05 May

Did you miss the Spring Garden Fair on May 6th at Southern Oregon Research and Extension Center?

Were you out of town?

Did you go to the Expo by mistake, and get distracted by the Home Show?

Or did you attend SGF and just not get ALL the plants you needed?

 

If so, you are in great luck!  Jackson County Master Gardeners are having an

 

AFTER SALE 

May 13th from 9 am to 3 pm

Southern Oregon Research and Extension Center

 

All vegetables, herbs, and annual flowers left over from SPRING GARDEN FAIR will be on sale for HALF PRICE.  Many native plants will be discounted as well.  Come on down and shop ’til you drop!

Mar 31

Phoenix Earth Day – April 22nd

By Beet 2023 04 April

 

Celebrate nature and learn more about

how we can protect the Earth

Join in the Kids’ Activities, Music and a Native Plant Exhibit and Sale.

  • Kids’ activities include rock painting, bean bag toss, seed planting, photo ops with the world’s largest caterpillar and more!  Dress as your favorite flower, animal or pollinator! 🐝
  • Music by Jen Ambrose starting at 11 AM and Ring of Trees starting at 1 PM
  • Walk, bike or ride the FREE shuttle bus from the parking area at the Phoenix Civic Center or the parking area at Blue Heron Park. Tenant and ADA parking ONLY at the event site.
Mar 31

Keystone Shrubs: More Birds in Your Garden

By Beet 2023 04 April

Last month we discussed keystone trees that do well in the Rogue Valley.  As you will recall, keystone plants are those that do the heavy lifting in terms of supporting food webs.  While many homeowners cannot plant larger trees, here are some woody shrubs that can be used in local landscapes and support a wide diversity and number of caterpillar species.  I have quoted the descriptions of these plants from Oregon Flora

 

Evergreen Huckleberry (Vaccinium ovatum)  “Evergreen huckleberry is a popular species for native and ornamental gardeners alike. This slow-growing, low-maintenance shrub provides attractive year-round interest, readily growing in all light conditions. Glossy dark green leaves complement clusters of bell-shaped white and pink flowers. It fruits best when given some sun, yielding shiny purple-black berries that are delicious in pies, jams or straight off the bush! Perfect in hedgerows and privacy screens, evergreen huckleberry provides erosion control and food and shelter for wildlife.” But the real story is that Vaccinium can support up to 130 species of moth and butterfly caterpillars, so it creates an abundance of food for nestling and fledgling birds.

Vaccinium ovatum Pursh

 

 

Thimbleberry (Rubus nutkanus) “Thimbleberry is a beautiful alternative or complement to common raspberry and blackberry. Thimbleberry’s fast-growing, thornless branches form thickets with large velvety leaves that provide thick cover. Showy white flowers mature into vibrant red berries, which contrast delightfully with the bright green leaves. Ripe thimbleberries are highly sought after by mammals and birds and the tart berries are delicious fresh or in pies and jams. It will tolerate a variety of light and moisture regimes.”  Thimbleberries host 96 Lepidopteran species.

  Rubus nutkanus Moc. ex Ser.

 

 

We have several native roses (Rosa) here in the Rogue Valley: BaldHip Rose R. gynocarpa, Woods’ Rose R. woodsii, and Nootka Rose R. nutkana. Check Oregon Flora to see which will work best for your site.  Roses support up to 94 species of butterfly and moth.

  Rosa nutkana C. Presl

 

Ceanothus is another powerhouse plant for both bees and butterflies.  The link here will take you to a page with all the natives listed.  You can choose deciduous or evergreen varieties.  Ninety-three Lepidopteran species hosted.

Ceanothus cuneatus

 

 

 

 

 

Serviceberry, Amelanchier alnifolia, hosts 81 species and is described thusly: “Pacific serviceberry is a silver barked, relatively slow-growing small tree that does well in sunny cool sites and dry shade. Patience will be amply rewarded with blueberry-like edible fruits and fragrant 1″ white flowers. In addition to providing wildlife habitat, it can be included in a hedgerow, windbreak, thicket, or erosion control planting in your woodland garden. Avoid heavy clay soils.”

Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem.

 

 

Crataegus douglasii, or Black hawthorn is a beautiful small tree that hosts 80 caterpillar species. “Black hawthorn, or Douglas’ thornapple, is a slow-growing tree which can reach a maximum height of about 25 ft. It is particularly hardy and is resistant to diseases to which ornamental cultivars are susceptible. Lovely white flowers mature into black berries (haws). This small tree is ideal for gardeners interested in providing wildlife habitat: its sharp thorns provide protection to birds and small mammals while its berries offer food during winter months. Black hawthorn attracts pollinators, including hummingbirds and butterflies, as well as beneficial insects.”

Crataegus douglasii Lindl.

 

Finally, our native Hazelnut, Corylus cornuta, hosts 71 caterpillar species. “California hazelnut is a hardy shrub growing in full sun to shade and moist to relatively dry soil. It is among the first plants to bloom, its long catkins emerging between mid-winter and early spring. The leaves, which are deeply ridged with a slightly crinkly texture and serrated edges, turn a bright yellow in the fall. Attractive pale green leafy husks hide the maturing nuts which by late summer are a tasty and nutritious snack for humans and wildlife alike. Unlike the commercially grown European varieties, the native hazelnut is resistant to eastern hazelnut blight. If suckers are left unchecked, it will eventually form a thicket.”

Corylus cornuta Marshall

 

Try some, or all, of these wonderful, productive natives in your landscape.

 

 Garden for Life!

 

Feb 28

Grow Your Own Fresh Herbs

By Beet 2023 03 March

Our mission as Master Gardeners is to educate about sustainable gardening.  And what could be more sustainable than growing your own food?  Growing your own herbs is part of that.   Growing herbs can save you money and save water and shipping resources.  Plus, there is nothing more satisfying than walking outside with a pair of kitchen shears to collect the herbs you need for a recipe.

Many of the culinary herbs we use are woody perennials native to the dry Mediterranean region.  As we have a Mediterranean climate here in the Rogue Valley, they are a perfect choice for our gardens and kitchens.  Why spend good money on four sprigs of sage packaged in a plastic clamshell at the supermarket, when you can easily grow it in your yard?

The woody perennials herbs include: sage (Salvia officinalis), thyme (Thymus vulgaris), rosemary (Rosmarius officinalis), lavender (Lavandula angustifolia), and oregano (Oregano vulgaris).  They are easy to grow and tend to thrive on neglect. A word of warning about oregano: it is now listed on the Oregon Invasive species list, as it escapes easily from gardens.  I recommend an alternative, Oreganum syriaca, which has a similar flavor profile, and is used in the middle eastern spice Za’atar.  And for those who like a licorice flavor profile, French tarragon (Artemisia dracunculus) is well worth growing.  It must be grown from cuttings, as the seeds are sterile.  Other perennial herbs that are very easy to grow are chives (Allium schoenoprasum) and garlic chives (Allium tuberosum).  Both are vigorous clumping bulbs with edible leaves and flowers.  They spread readily by clumping and reseeding.  Many kinds of mint (Mentha) can also be grown, but be sure to grow them in containers, as they will spread aggressively around the yard.  They need more water than most other herbs.

Annual herbs I recommend for companion planting in your summer vegetable garden include basil (Ocimum basilicum), dill (Anethum graveolens), and coriander (Coriandrum sativum).  Coriander seeds are ground for the spice coriander, while the leaves are what we know as cilantro. Mexican tarragon (Tagetes lucida), which is actually a marigold, is used as a replacement herb for French tarragon.

Biennials you should plant are parsley and fennel.  As with oregano, fennel needs a warning.  It is also on the invasive species list, so if you are growing it for seed, please encase those in a paper bag to dry for harvest, so they do not enter the environment.  The stems and leaves of fennel may be harvested before the flowers develop. Both the biennials and the annuals have the added value of attracting pollinators and tiny beneficial predatory and parasitic wasps, which will protect your vegetables from pest insects.  In fact, all the herbs mentioned here are terrific nectar plants for butterflies, bees and other beneficial insects.  What is not to love?

All of these herbs can be found at local garden centers, and most will be available for sale in the JCMGA greenhouses at the Spring Garden Fair at the Extension on May 6th, this spring.  Try growing some in your garden this year, and GARDEN FOR LIFE!

Jan 31

Keystone Native Trees Promote Biodiversity

By Beet 2023 02 February

By now, most gardeners understand the importance of native plants in performing our critical ecosystem services. These services are carbon sequestration, soil restoration, food web value, wildlife habitat, watershed value, pollinator habitat, and weather moderation. While the exotic plants we grow in our gardens may perform some of these functions, they do not contribute to the food web in any sustainable way. Native plants, adapted to our area, are truly the workhorses of biodiversity and ecosystem stability.

That said, not all native plants contribute at the same level. In fact, about 5% of plants support around 75% of insects. These are called KEYSTONE plants, because of their critical function and contribution to ecosystems.   And as insects are the food of most vertebrate species, we must support and increase their numbers as much as possible. We can have a positive and quite efficient effect in our yards by choosing and planting local keystone native plants.

Begin with trees, which are the food web powerhouses, both for pollinators (yes, the bees are in the trees!) and for insect bird food. Rogue Valley trees listed in this article will be linked to the Oregon Flora where you can read a description of each. If you have a small suburban yard, some of these trees may not be appropriate. Here are our top keystone trees:

Native Willows (Salix): In the western United States, willow trees host the highest number of moths and butterflies (312 species of Lepidoptera), which are the primary source of food for our songbird nestlings and fledglings. These are NOT the weeping willow planted in yards and parks, which comes from Asia. Oregon willows are widespread and varied.  Several occur in Jackson County. They prefer wet sites and should not be planted on small lots or near drain or sewer lines, as they will invade pipes. But if you have property with a creek, or low wet area, by all means get some established.

Native Cherry (Prunus):  Most of us are familiar with Prunus avium, the sweet cherry introduced from Europe that is now naturalized throughout much of the Willamette Valley and coastal mountains. Birds have carried these seeds to wild areas where they establish. Please plant one of our three native cherries, Bitter Cherry (Prunus emarginata), Klamath Plum (Prunus subcordata) and Chokecherry  (Prunus virginiana). All three are small trees which can be grown in smaller lots as specimen trees or added to a hedgerow along a fenceline to provide screening, cover, food and nesting sites for birds. Native cherries host 240 species of Lepidoptera.

Native Oaks (Quercus): Our local native oaks are Canyon Live Oak (Quercus chrysolepis), Garry or Oregon White Oak (Quercus garryana), California Black Oak (Quercus kelloggii), and a quite nice shrubby chaparral species, Huckleberry Oak (Quercus vacciniifolia). This last is not a huckleberry, but a true oak, with acorns and leaves that resemble Vaccinium. Hence the name. Western oaks host over 200 species of moth and butterflies and tasty caterpillars for baby birds.

There are many other keystone trees you could explore: birches, alders, aspen, poplars, Douglas Fir and maples. Choose trees that are appropriate to your soil and water conditions.

Some of these plants and many more are for sale in our JCMGA nursery, on the SOREC Extension campus, 569 Hanley Road, Central Point. The nursery is open for sales on Wednesdays from 10 am to noon, April through October, and by appointment. Contact Lynn at kunlynn52@gmail.com to schedule an appointment. We also have seasonal pop-up sales, so be on the lookout for those.

Garden for Life!

Nov 29

Holiday Native Plant Sale

By Beet 2022 12 December

On November 12th, the Jackson County Master Gardener™ Association held a Holiday Gala and Native Plant Sale at SOREC. Our Native Plant Nursery was open for plant shopping, and the auditorium had holiday crafts and gifts for sale.

Even in November, our nursery made $1,117. Not bad for it being so late in the year, although fall is the best time to plant shrubs, trees and most perennials. Setting up a plant sale on campus is easy. Since the weather was cold, we put the pay station in Greenhouse 2 and added some space heaters to keep our volunteers warm. Not having to transport plants from our site is a huge plus. We merely need to put out the sale and information signs and let folks wander the nursery space to select their plants.

Of course, there is always pre-planning for any sale. A volunteer roster must be made, and volunteers scheduled and contacted with reminders. Our Square card reader must be set up, with someone working who knows how to use that. I keep a plant sale checklist to be sure I have money for change, all the signs and prices in place, cashboxes on hand, etc. Chairs and tables need to be in place for the volunteers – although in November we already had tables in the Greenhouse, so we just needed stools and chairs for workers.

The weather cooperated. Though it was cold, we had no rain and folks were able to shop leisurely. We had some concerns about foot and auto traffic but had no problems with either of those. Sales happened mostly between 9 am and noon, which is good information for us for future pop-up sales planning.

Finally, none of this could have been possible without the hard work of all our nursery volunteers. Hugs and many thanks to all who worked in the weeks and days leading up to, and on, our successful day.                                                                                                 

Nov 29

JCMGA HOLIDAY FUNDRAISER

By Beet 2022 12 December

Jackson County Master Gardeners™ is fundraising through December 15th through the BottleDrop® Holiday Give program.

You can pick up one or two blue bags in the lobby of the Extension office, fill them and drop them off at bottle drop.  Bottle drop is matching up to 20% of donations, so get your cans and bottles in by December 15th!

As always, JCMGA uses our funds to educate the community and for new Master Gardeners to learn, practice and teach the art and science of gardening in the Rogue Valley.

To read more about the BottleDrop Holiday Give program, visit https://www.bottledropcenters.com/holiday–give/.

Please like and share this post, which can be reached on Facebook via either of these tags:

#HolidayGive2022, #BottleDropGive

Sep 29

Native Plant Sales are a BIG SUCCESS!

By Beet 2022 10 October

 

Our Native Plants Nursery is up and running at full capacity. And our recent Pop-up Sale in September proved to be enormously successful. Volunteers spent August potting nursery stock into gallon containers. Crews came the week of the sale on Wednesday, Thursday and Friday and weeded paths, spread bark chips, weeded containers, put the nursery plants in common areas, erected sale canopies and put information and sales signs around the nursery.

The Saturday sale had a steady stream of customers until about 1 pm, despite the scorching temperatures. We sold 429 plants: 381 natives, 27 figs and 21 non-natives. We also sold three books. Sales totaled $2,378.00.

Customers were given handouts when they checked out: How to Plant a Native Plant, Keystone Plants for Specialist Bees and Lepidoptera by the National Wildlife Federation and a trifold of Seven Steps to Increasing Biodiversity in Your Yard, with a plant list keyed to our local keystone native plants.

During the coming weeks, we need to continue to pot on plants and begin to stratify the native seeds for germination next spring. We will have two more sales; the first is on Sunday, October 9th, from 10 am – 4 pm, at Pollinator Project Rogue Valley: 312 North Main Street Phoenix, Oregon. Here is the link to that event https://fb.me/e/2al2Psugc Please consider sharing this information and inviting your local gardening friends on Facebook and through other social media.  At this sale last year, we made $1,300. We are hoping to make much more this year. If you missed our September 10th sale, please try to make the October sale.

On Saturday, November 12, the nursery will be open for plant sales during our Winter Gala Event. Hours are 9 am – 3 pm. Holiday gifts, wreaths and decorations will be for sale in the auditorium on the SOREC campus – 569 Hanley Road, Central Point. And plants will be available in our nursery next to Greenhouse 2 and the parking lot. You can also visit the nursery and buy plants most Wednesdays through October from 9 am – noon.