Category Archives: organic gardening

dormant spray, fruit tree diseases, fruit trees, organic gardening

How to Control Pests & Diseases

I love it when a nice reader takes the time to call me to suggest a topic they?d like to see me write about or remind them what needs to be done at a certain time of year. Take Helen, who lives in Spring Lakes in Scotts Valley, for instance. Helen told me she grows tomatoes in the summer and has 4 fruit trees including a satsuma plum, an espaliered apple and a tangerine. Helen battles peach leaf curl on her plum and coddling moth larvae inside her apples and would like to know exactly what to use and when to control these problems. So this column is for you, Helen.

Spray dormant fruit trees now for fungal and insect control. Coddling moth control is in March or April.

I know we?ve had a lot of rain which makes gardening and spraying difficult. You can prevent or control many diseases and overwintering insects by applying a dormant spray this month. This can be the most effective spray of the season. Fungal diseases such as peach leaf curl, fire blight, scab and anthracnose as well as insects including aphids, San Jose scale, bud moth, leaf roller, whitefly larvae, mealybugs and mites can all be controlled.

There are several types of dormant sprays and all three types are considered organic. Lime-Sulfur or copper can be mixed with horticultural oil which smothers overwintering insects and eggs. This spray is good for all fruit trees except apricots which should be sprayed in the fall with copper and this month only with horticultural oil.

Apply dormant spray when the temperature is above 40 degrees. Make sure you cover every nook and cranny of each branch and trunk until the tree is dripping and spray the surrounding soil. Spray only plants that have suffered from pests or disease. Sprays, even organic, can kill beneficial insects as well. Even though they?re organic, dormant sprays can be irritating to skin and eyes, Wear long sleeves and gloves and eye protection.

Spinosad has been shown to suppress fungal diseases. Do this when the buds swell but before they open. Do not spray 36 hours before rain in predicted. Be sure to spray the ground around each tree.

Coddling moth control requires a different approach. The larvae of this particular moth is one of the few caterpillars that are likely to be found inside pear or apples. University of California Integrated Pest Management website has complete information about controlling this pest.

The website is http://ipm.ucanr.edu/PMG/PESTNOTES/pn7412.html

The bottom line for coddling moth control is the timing of insecticide spray applications, especially with newer, less toxic pesticides like spinosad. The coddling moth overwinters as full grown larvae within thick silken cocoons under loose scales of bark and in soil or debris around the base of the tree. The larvae emerge as adult moths mid-March to early April. To be effective your spray application must be timed for when when they are active.

Starting three to four weeks after bloom, check fruit at least twice a week looking for the first ?stings? or any mounds of reddish-brown frass. If you scrape the frass away you will see the tiny entry hole where the newly hatched larvae has just entered the fruit. Spray the tree as soon as you see the first sting after removing any fruit with stings as the insecticide won?t kill any larvae that have already entered the fruit. Coddling moths can have three or four generations per year.

According to the website, for most backyard situations, the best course of action might be to combine a variety of non chemical methods and accept the presence of some wormy fruit. Be sure to cut out the damaged portions because they might contain toxins generated by mold.

Oh and by the way, Helen told me she is 88 years young so if Helen can do it, you can too.

bouquets, color in the garden, cut flowers, flowers, mulching, organic gardening, perennials, plant diseases, pruning roses, roses

About Roses

Roses are the flower of love. Many of us have fond memories of favorites in our mother?s garden or of a beautiful bouquet given or received on Valentine?s Day. It?s dormant season for roses which is good for both pruning and adding a few to the garden.

David Austin rose

As a designer I have clients who have inherited roses and want to keep them as a remembrance. Others want to create a cutting garden filled with roses and other perennials. Don?t feel guilty for growing those beauties in your own garden. They use less resources than you think and there are many ways to grow them sustainably.

Roses, whether bush types, climber or ground cover carpet varieties, use a moderate amount of water in order to thrive according to the latest Water Use Classification of Landscape Species (WUCOLS) list. This amount of summer irrigation is the same as many of the plants on the list of Scotts Valley Water District?s 800 Approved Low Water-Use Plants for lawn replacement. Plants such as Emerald Carpet manzanita, Joyce Coulter ceanothus, Siskiyou Blue fescue grass, Pacific wax myrtle, butterfly bush, yarrow hybrids and Tapien verbena have similar water requirements.

Since now is the time to prune your roses here are a few tips.

Strike it Rich hybrid tea rose

Prune shrubs moderately to keep them compact. The goal is to keep the center of the plant open for good air circulation aiming for a vase-shaped bush with an open center. Cut out canes that cross, appear weak or are diseased, spindly or dead. Healthy canes appear green or reddish while old and dying canes are brown. Cut back the remaining stems by about one third. When pruning, cut canes at a 45-degree angle just above an outward facing leaf bud or a swelling on the cane. Clean pruners after every use to prevent the spread of disease and keep your pruners sharp.

Prune heirlooms roses such as David Austin and other old antique garden roses less because their open look is part of their charm.

Same goes for climbing roses. Cut out extra stems if there are too many and also cut back long established canes to about the place where they are slightly thicker than a pencil. Then cut each side stem down to several inches. This will make the cane flower along its complete length for a beautiful spring display.

Zepherine Drouhin climbing rose

Pluck off and rake away any old leaves. They can spread fungal spores. Consider spraying dormant plants with a combination of organic horticultural oil and copper soap or lime-sulfur. If you usually only have problems with black spot you can use a mixture of 1 teaspoon baking soda with a few drops of light horticultural oil in 1 quart water and spray every 7 to 10 days during the spring.

Prune your roses throughout the growing season, too. Deadheading, or cutting off spent flowers, encourages plants to re-bloom. Mulch around your roses to conserve water and encourage soil microorganisms.

Don’t worry whether you’re pruning job is perfect. Roses are super forgiving and you can always trim them up again later.

gardening tips, organic gardening, soil, sustainable gardening

What’s in your Soil?

“The soil is made of butterfly wings, dinosaur teeth, pumpkin seeds, lizard skins, and fallen leaves.?? Put your hands in the soil and touch yesterday, and all that will be left of tomorrow shall return?? so that new life can celebrate this day.”? -Betty Peck

Soil makes all the difference to the plants you grow. The biggest issue we gardeners face is the ongoing battle with soil. If yours is difficult to manage or just plain unproductive you?ll be disappointed like me with the performance of many of the plants you put in the ground. Even tough plants like California natives have soil preferences and they are not always what?s in your garden.

phormium_acorus_lomandra
Low water-use plant responding to fertile soil

We live on ancient sea cliffs.? Soils in Bonny Doon and Scotts Valley consist of shallow, excessively drained weathered sandstone and shale. Felton soils were formed from shale, sandstone or mica schist. Those in Ben Lomond and Boulder Creek had their beginnings from weathered sandstone or granite. Although these provide the necessary mineral component of our soil. organic matter or humus from decayed plant and animal material are necessary also for fertility.

Here?s why improving your soil will make a difference to the health of your plants.

Good soil-with both organic matter and minerals-helps plants grow by forming the food supply for soil bacteria that help make food available for plant growth. Most of a plants energy goes to producing substances that drip out through the roots to attract bacteria and fungi. These in turn attract good nematodes and protozoa to the root zone. The protozoa eat bacteria and the nematodes eat not only the bacteria but also fungi and other nematodes to get carbon. What they don’t need they expel and this feeds the roots much like earthworm castings.

Down in the soil, if a plant needs different foods it can change what is secretes. Different substances will attract different bacteria, fungi, nematodes and protozoa. This huge diversity of soil biota helps the good guys keep the bad guys in check.

A common way to destroy the microbiology of the soil is to add salts in the

OLYMPUS DIGITAL CAMERA
Collection of perennials one year after planting in amended soil.

form or non-organic fertilizers. The salts kill the bacteria and fungi by dehydrating them. Then the plant can’t feed itself and becomes dependent on its fertilizer fix. Without the good bacteria and fungi in the soil other parts of the food chain start dying off as well.

The soil food web is also responsible for soil structure. Bacteria create slime that glue soil particles together. Fungi weave threads to create larger soil particles. Worms and insects distribute bacteria and fungal spores throughout the soil and create pathways for air and water.

What can you do to bring your soil back to life?
? Mulch around perennials, shrubs and trees with 2-3? of compost, wood chips or other organic mulch.
? Apply mycorrhizal fungi, especially in a new garden that’s been rototilled or chemically fertilized. You can find this in most organic fertilizers and some organic potting soils.
? Try to avoid walking on the root zone of plants. This kills fungi in the soil. Install stepping stones to preserve soil structure.

Feed your soil- not your plants.

edibles, fertilizing, fruit trees, organic fertilizers, organic gardening, pruning fruit trees, UCSC Farm

Fruit Tree Care – Fertilization & Summer Pruning

Whether you grow one fruit tree or a home orchard full of them there is always something to learn from an expert and Orin Martin of UCSC Farm and the Alan Chadwick Garden is just the guy to help. With nearly 40 years of hands-on experience at UCSC he says he?s come up with a successful method of caring for fruit trees including pruning and fertilizing . ?I?ve made every mistake in the book?, he laughs.

Orin_Martin_prunig_fruit_trees
Orin Martin explaining summer pruning

The UCSC Farm and Alan Chadwick Garden on the campus are both internationally known for training, research and public education. Recently I had the opportunity to join Orin during the Summer Orchard Walk at The Farm as he discussed the care of fruit trees and summer pruning to improve tree shape and productivity. Between jokes he shared many tips including the importance of fertilization and preparing an orchard for fall and winter.

Deciduous fruit trees are genetically programmed to start root growth early as they originated in the cold winter climates of Northern Iran, Uzbekistan and other central Asian areas. Their growing season begins in January or February which is 3-5 weeks prior to any visible bud swell when soil temperatures are still in the low 40?s. With this in mind Orin recommends starting fertilization early. Organic fertilizers take longer to become available to the tree and you want to maximize the early growth spurt in spring.

sunflower pollinator attractors
Sunflowers attract pollinators to garden

Orin has a recipe for fertilizing young fruit trees that is used throughout the Farm and Garden. It?s comprised of compost and an organic source of nitrogen such as blood meal, 8% Nitrogen Sustane or Dr. Earth granular. A young tree will need additional nutrients in May and possibly July if the tree is not putting out sufficient structural growth. Fast acting liquid fertilizer such as fish emulsion and liquid kelp can be substituted for the early summer feeding. The second wave of growth occurs in fall. Slow acting organic fertilizer is best at this time.

Next year?s fruit buds are formed in late spring to early summer at the same time current fruit is growing so nutrient needs are extremely important at this time. If a mature tree is growing well its yearly fertility needs may be met by growing a bell bean crop as green manure over the winter.

Ginger_Gold_apples
Ginger Gold apples with resident cats

The two resident garden cats followed our group as Orin demonstrated summer pruning of Ginger Gold apples, Flavor King pluot and Seckel pears. Most are trained to a open center with some having a modified central leader. I asked what he would do if no central leader grew after heading back a young tree whip. ?Then I?d train it with an open center. You?ve got to play the hand your dealt?, he laughed.

?Ladderless? harvesting and care is the goal to pruning in summer and winter. Summer pruning from early August to mid September stops growth and is done to limit height and length of branches to encourage more fruiting shoots. Winter pruning creates the tree?s structure. ?When you don?t want a tree any taller, stop winter pruning?, Orin told us.

UCSC Farm_Garden_crops
UCSC Farm crops

Throughout the orchard walk Orin Martin shared interesting tidbits of information. Seems that pest problems such as European blister mite and pear slugs are being observed here at for the very first time.

The USCS Farm & Garden has free monthly guided tours as well as a calendar of educational talks and events. It is open daily for everyone to learn and enjoy. Kids tours are offered during the school year in the Life Lab Garden Classroom.

cherry tomatoes, edibles, organic gardening, organic vegetables, raised vegetable gardens, vegetables

Growing your own Food for Health & Happiness

I don?t grow enough of my own healthy organic food so I rely on the kindness of strangers and several friends. I do manage to harvest a few handfuls of my own strawberries and cherry tomatoes but that?s about it due to lack of sunlight. Fortunately I have the farmer?s market for other fruits and vegetables and friends that keep me supplied with their overabundance of delicacies like plums, guavas and persimmons.

veggie_boxes_july2016
Veggie boxes- July 2016 All photos courtesy of Gaylon Morris

I enjoy reading about the gardening exploits of a Facebook friend as she keeps me posted on the progress of her garden. She?s an inventive cook so there?s no shortage of recipes and pictures of the meals she creates from her daily harvest.

Being involved with the food we eat is a sure way to the road to health. My friend Chandra Morris raises chickens in a coop she affectionately calls Fort Clux and includes eggs in many of her recipes. She and her husband Gaylon designed the coop to exclude any raccoons or other predators and it?s state of the art as far as chicken coops go. Then there?s the raised veggie boxes designed and built in an odd-shaped triangular section of their yard. Utilizing every possible square foot for edibles it?s downright inspirational.

blueberry_Pink_Lemonade
Pink Lemonade blueberry

This is the second season for these raised veggie boxes. Healthy plants need good soil to grow. With this in mind the boxes were originally filled with an organic veggie mix from a local supplier in Aptos that included organic dairy and chicken manure, organic one earth compost, grape pumice, gypsum, organic 4-4-2 fertilizer and humic acid from molasses, seaweed and yucca extract and bentonite clay. The strong healthy plants that Chandra grows attest to the richness of this soil mix.

The progress of Chandra?s vegetables has been remarkable and I?ve been able to track it since May 15th when she posted a picture of the garden at 95% planted. After a couple weeks a picture showed up depicting an afternoon snack of 4 kinds of radish, cherry plums from her tree and a pea pod that ?wasn?t ready but I couldn?t resist.? Then came the late June posts showing pea pods ready for harvest on a trellis, then in a colander on the kitchen counter for dinner that night.

tomato_Indigo_Rose
Indigo Rose tomato

I asked Chandra what some of her favorite vegetable varieties are. She said she grows Pink Lemonade blueberry because it?s supposed to be more resistant to birds as it isn?t blue. Blue lake pole beans are a classic she likes but she also grows Royalty purple pod bush beans. Her very favorite tomato is Green Zebra. Runners up are Pink Berkeley Tie Die, a psychedelic-colored beefsteak-type. Chandra describes Chocolate Cherry as ?the best cherry tomato I have ever had with a silky texture.? She also grows Indigo Rose so there?s no shortage of tomatoes on the Morris family dinner table.

corn_Calico_July
Calico corn- a gourmet popcorn variety

I commented on the vigorously growing corn and was told it?s Calico Popcorn, a gourmet heirloom variety. In the middle of each corn circle she plants Christmas lima beans, a speckled butter bean with a rich, mellow chestnut flavor, winter squash and a ?4th sister?- Bright Bandolier sunflowers. Growing three different crops in one space is a Native American tradition. The Iroquois coined the term The Three Sisters although they weren?t the only tribe to use the method. It?s a circle of interdependence based on giving and receiving.

Four_Sisters
Four Sisters

The three plants work together. Sister Bean fixes, or makes available in plant form, nitrogen from the air. Sister corn provides the support for Sister Bean?s trailing vine. Sister Squash provides ground cover to hold moisture and maintain a healthy soil environments as well as deterring animals invaders with it?s spiny stems. The fourth sister can be Sister Sunflower or Sister Bee Balm. This sister supports the beans, lures birds from the son with her seeds and attracts insect pollinators.

Besides eating fresh from the garden, Chandra is also a good cook and posts lots of good recipes to go along with her harvest. From sauces, to peppers to pickles to soup the list is endless on all the ways she utilizes her harvest of organic fruit, vegetables and eggs in a healthy diet.

Deer Resistant Plants, drought tolerant plants, flowering shrubs, Funny gardening stories, garden design, gardening tips, organic gardening, straw bale garden, succulents, vegetables

A Walk on the Wildside: The Ongoing Saga of the Hillbilly Gardener

rose_Fourth_of_July
Fourth of July roses

Many years ago I was invited by a Scotts Valley resident to visit their garden. This was no ordinary garden I was to learn during my visit and each spring I look forward to seeing what?s new at Doc Hencke?s garden. From his roots in Oklahoma and Texas he describes himself as the ?Hillbilly Gardener? but with his extensive knowledge of trees, vines and just about anything that grows he is one of the most successful and enthusiastic horticulturists I know. I wore my walking shoes and we started talking about what changes he?s noted in his landscape the past few years of drought coupled with this winter?s rains.

straw_bale_veggie_garden_Ghio_bearded_iris
Straw bale veggie garden with Joe Ghio bearded iris

First stop- the straw bale veggie garden. The soil in this part of the garden is blue hard sub soil so this above-ground method of cultivation has been a real success. Richard told me that when the bales were first put in place a couple years ago he watered them thoroughly to start the fermentation process. Using a meat thermometer he determined by the internal temperature when fermentation was complete. He then soaked the bales with liquid organic fertilizer and applied some blood meal to augment nitrogen. The straw bales are decomposing each year but he?s going to use them once more this season. His crop of kale, lettuces and chard looked robust and happy.

Nearby a bed of Joe Ghio hybrid bearded iris were in full bloom. ?It?s been a great year for iris?, Richard said. Not so good for peach leaf curl. The rains this winter set the perfect stage for the fungus to proliferate. He joked that the birds get the peaches anyway.

Richard is redoing his pond this year. He?s tired of fighting the raccoons and algae. Steeper sides will deter the raccoons and deeper water will help to prevent algae growth. He was forced to remove a curly willow that shed leaves into the pond as their natural salicylic acid was poisoning the pond.

succulent_collection
Succulent collection with blooming kangaroo paw

Last year a new succulent bed was planted along the back of the house and patio. His Sticks on Fire all died over the winter from the cold and rain but the aeonium ?Zwartkop?, echeveria ?Sunburst?, kangaroo paw and various sedums were filling in nicely.

weeping_leptospermum
Weeping leptospermun

Below the patio the golden Mexican marigold and blue Pride of Madeira were in full bloom along with a gorgeous stand of Weeping Leptospermum. ?Magnificent this year, just look at this plant. Can you imagine what it?s going to look like in another 15 years??, he said. Pointing out the visual boundaries he creates with flowering vines growing up into the trees, Richard observed that some are going better than others. Sound familiar in your own garden? Even this expert propagator is sometimes stymied by Mother Nature.

Richard_and_the_giant_ China_Doll
Richard and his giant China Doll tree

I love to hear Doc Hencke?s stories as he shows me around. Stopping at a China Doll houseplant that has now grown into a tree he tells me he thinks it?s one of the tallest specimens ever. His giant bird of paradise flower pod opened last week. I?d never seen their enormous blue, prehistoric-looking flowers before.

Richard?s new desert garden along the driveway is growing in nicely with the aloe plicatilis blooming for the first time. Also the yucca he and his brother dug up inTexas is finally blooming. ?I?ve only waited 52 years for it?, he laughs.

There are so many stories that come with each and every plant in Richard?s collection. It?s always a walk on the wild side.