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Master Gardeners of Greene County

July 2022

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Table of Contents for July's Newsletter

Hosta Virus X

Different Types of Cherries

Watermelon Anyone?

Learn to Grow in the Garden

Food Preservation Online Classes

Garden Hour with MU Extension

The Garden Spade - June

The Hover Fly

Jumping Worms - Invasive

Summer Care of Reblooming Roses

Researched Based Garden Links

Garden Links

One Last Thought

Get Your Soil Tested Now

Previous Newsletter Link

Need a Speaker for One of Your Meetings or Groups?

Gardening Questions Hotline - Phone, Email and Web Questionnaire

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Hosta Virus X

Many hostas are turning up that are infected with a virus called Hosta Virus X (HVX). The most commonly seen ones are plants of 'Gold Standard', 'Striptease', and 'Sum and Substance', but other common varieties are being reported infected in large numbers. No hostas are immune to HVX.


While this disease does not kill plants, its primary danger lies in its proven ability to spread prolifically. Because symptoms may take years to show after infection, HVX has infected hundreds of thousands of plants and is at epidemic levels around the world. If a batch of hostas contains any individual plants that show HVX symptoms, the whole batch should be considered infected and should be destroyed, as individual testing is impractical and not a guarantee.


If you are a gardener, do not buy plants from batches that show even the slightest markings on even one plant. If you have these plants from batches that show symptoms at your home, dispose of them immediately. If you are a grower or vendor, learn what the signs are and contact the supplier if you see them in your stock. Only testing with the specific ELISA kit for HVX can detect HVX. Very large numbers of HVX-infected plants are still currently being sold at all levels.


This virus is transmitted primarily through cutting the plants. Contact of the infected plant's sap with sap of a healthy plant will infect the new plant. This can happen whenever cuts are made and the instruments or hands are not disinfected afterwards. Dividing hostas, removing bloom scapes, removing leaves, stepping on them, even accidentally running the lawnmower over them can and will spread this virus. It survives only in living plant tissue and dies without a host. Plants in pots may be simply disposed of or burned. Plants in the ground should be dug carefully as to get as many roots as possible, and the spot should not be replanted until any remaining roots have died and rotted away.


For close up pictures of individual leaves click here.


For more information about Hosta virus X, click here, here and here.

Different Types of Cherries

Wether you like the just off the tree or package, know what type you are getting and what is best for using in pies and cooking. Maybe this will get you out of your comfort zone and try new kinds cherries.

Watermelon Anyone?

Learn to Grow in the Garden

These classes are FREE!


Monday, July 18 at 5:45


Meet at the Water Wise Garden

1500 S National

Springfield MO 658074


The below links are not live.

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Food Preservation

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This self-paced course provides research based information needed to safely and successfully preserve food at home. Participants of all levels of food preservation experience are welcome, including individuals with little or no previous food preservation experience. This course covers pressure canning, boiling water bath canning, steam canning, dehydration, and freezing. Highlights include preserving salsas, pie fillings, pickling, sweet spreads, and harvesting and storage of produce.


Registration is $30.00


Click here for more information and registration.

Get your lawn and garden questions answered at the Garden Hour with MU Extension

Virtual Town Hall: Mandy D. Bish | MU Extension Specialists will address lawn, garden, and insect questions during the 'Garden Hour' with MU Extension. The third Wednesday of each month from 12-1pm. The virtual event is free. To register for the virtual event and/or ask a gardening question, please visit.


To see recordings from previous events, please check out the YouTube videos on the MU Extension IPM channel here.


For more information visit.  Or contact Mandy D. Bish, MU Plant Science & Technology at (573) 882-9878 or email: bishm@missouri.edu 

The Garden Spade Newsletter June 2022

The Garden Spade Newsletter June 2022 Issue is online. Articles include: Predatory Insects; June Wildflower Viewing; Gardeners & Baseball Fans Swing into Summer; Fruit Salsa w/Cinnamon Chips Recipe; Feeding & Attracting Hummingbird; Lavender Update; Plants that Changed History: Sweet Orange; What is It?; Kids Ask Dr. Bug; Garden Calendar; Upcoming Events


Click here to read the newsletter. It is downloadable.

The Hover Fly 

Stink Bugs and Squash Bugs

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Your garden is coming along just fine and then you remembered the dreaded stink bug and the squash bugs! Don't worry, there is a solution and it is best to do it sooner than later. Spray your potatoes, squash, cucumbers, melons and tomatoes with kaolin clay. This is a deterrent and not a killer. It won't harm your friendly bugs.


You mix 3/4 C of kaolin clay with 1 qt of water in a small sprayer. Shake well, and continue shaking while spraying to avoid settling of the clay. Try to get tops and bottoms of leaves and the whole tomato. Best to do so before the blooms open in the early am.


Stink Bugs -Integrated Pest Management Strategies by Missouri Botanical Garden: Tomato and other veggie growers, learn more about stink bugs and their damage to tomatoes other veggies and host plants here.


Squash Bugs - Integrated Pest Management Strategies by Missouri Botanical Garden: Squash bugs (Anasa tristis) are pests on all cucurbits including cucumbers, muskmelons, pumpkins, squash, and watermelon. Squash and pumpkins are the most susceptible to squash bug attack. Learn more here.

Jumping Worms

An invasive species native to Asia, now spreading in North America, including Missouri. At least three species of these nonnative jumping worms have begun to spread: Amynthas agrestis, Amynthas tokioensis, and Metaphire hilgendorfi. Read more about Jumping Worms form MDC here.

Summer Care of Reblooming Roses

Rose is America's favorite flower. However, unlike Shakespearian roses which bloomed for only a short while, hybrid tea, floribunda, miniature and many other types of modern roses have the ability to repeat flowering during the summer. Continue reading here.

Researched Based Garden Links

Growing Apples? These three guides from MU Extension may help you: 'Pollinating Fruit Crops,' PLUS, 'Home Fruit Production: Apples,' PLUS 'Apple Cultivars and Their Uses.'


Fruit Production - Missouri by Michele Warmund, Division of Plant Sciences: Missouri is home to almost all temperate zone fruit plants, including strawberries, raspberries, blackberries, gooseberries, currants, blueberries, grapes, apricots, cherries, plums, nectarines, peaches, apples and pears. They can be harvested from mid-May through the end of Oct. Continue reading here. --PLUS: 'Pruning Raspberries, Blackberries and Gooseberries' by Michele Warmund: Brambles are biennial plants with two types of canes, primocanes and floricanes. For fall-fruiting raspberries and blackberries, berries are harvested in Aug or Sept from 1-year-old canes called primocanes. Learn more here. 


What is Integrated Pest Management (IPM)? Three Related Publications Published by University of Missouri Extension: IPM has different meanings to everyone who works in the agricultural environment. It can be thought of as a systematic approach to solving pest problems:

● Part #1 - 'Integrated Pest Management and Missouri’s Agriculture' read here: 

● Part #2 - 'Integrated Pest Management in Missouri’s Urban Environment' read here:

● Part #3 - 'Integrated Pest Management in Missouri’s Green Industries' read here:


'Container gardening saves time, space and is easier on the back' by Debbie Johnson for MU Extension at: “Perhaps you want a garden, but a patio or stoop is all you have. You can grow your garden in containers... It’s also easier to care for a container garden", David Trinklein said. Learn more. -- Plus Bonus: 'Container gardening: Thrillers, fillers and spillers' If you’re yearning to grow flowers or vegetables but are short on space or have limited mobility, give container gardening a try. Container gardening allows for creativity in a small space and, since plants can be moved inside in the spring and fall, lets gardeners extend the growing season, David Trinklein said. Learn more


'Rose: A Brief History' By David Trinklein MU Plant Science & Technology: Shakespeare once wrote, “Of all flowers, methinks rose is best”. Such sentiment is quite common and throughout history this elegant, symbolic flower has occupied a special place in the hearts and minds of people everywhere. Continue reading here. --PLUS: 'Integrated Pest Management (IPM) of Roses' by Cornell Univ. Dept of Hort: The focus of this fact sheet is to help gardeners increase their familiarity with how integrated pest management (IPM) can be applied to rose culture. Learn more here. --PLUS: 'Rose Rosette Disease' by Christopher J. Starbuck for MU Division of Plant Sciences: Rose rosette is a fatal disease of plants in the genus Rosa which is caused by a virus-like pathogen, spread (vectored) by a tiny, eriophyid mite (Phyllocoptes fructiphylus). ... Symptoms of rose rosette disease (RRD) are diverse and bizarre. Read on to learn more here


'Growing and Marketing Elderberries in Missouri' Published by MU Extension: American elderberry is a rapidly emerging new perennial crop for Missouri and the Midwest. The American elderberry, native to much of the eastern U.S., is a medium to large multiple-stemmed shrub, bush or small tree. This guide explains the basics of establishing, managing and marketing an American elderberry orchard here. --PLUS VIDEO: 'Elderberry Culture with Patrick Byers, MU Extension' View Online YouTube video here: --PLUS MDC Common Elderberry (Sambucus canadensis) by Missouri Dept of Conservation Field Guide: Common elderberry is a shrub to 8 feet tall, forming colonies from root sprouts, with branches occurring near the top. Both poisonous and edible. Questions you can contact your Missouri Department of Conservation field agent. Learn more here.


Starting a Missouri Pollinator Garden? 'Natives for Pollinators' by Grow Native! Eleven featured native plant species and associated native pollinators to help native gardening/landscaping enthusiasts get started helping pollinators. Learn more about each here. --PLUS: 'Pollinators' from MDC.


VIDEO 'Growing and Marketing Pawpaw in Missouri' by Patrick Byers for Mizzou Agroforestry Oct 2, 2021: In this video, Patrick Byers, Horticulture Field Specialist at the University of Missouri Extension, shares insights about the growing, maintaining, harvesting, storage, and marketing of pawpaws. Learn valuable information spanning from site, to cultural practices, harvest and postharvest. Play17 minute YouTube video here.


VIDEO 'Growing and Harvesting Lavender' University of Missouri Extension Horticulture Specialist Kelly McGowan discusses growing and harvesting lavender in southwest Missouri. Aired June 2, 2022, on KOLR-TV10 in Springfield, Mo. Watch video here.


'Tips for Organic Site Preparation Before You Plant' by Sarah Nizzi for Xerces Society 18 May 2022: Organic site preparation is simply using methods and materials outside of the conventional options of chemical herbicides to prepare seedbeds prior to planting. Methods of organic site prep can be solarization, smother cropping, repeated cultivation, sheet mulching, and more. There are many ways to achieve good results without breaking the bank. Read More Here


'Mosquito Management at Home' by Aaron Anderson for Xerces Society11 May 2022: Spring is quickly turning into summer, and with the warming temperatures comes the drone of mosquitoes in our parks and yards. Unfortunately, the insecticide sprays used by pest control companies can be harmful to a wide variety of other insects. Fortunately, there’s a much more effective way to reduce your itchy bites this summer and protect pollinators in your yard: focus on eliminating areas where mosquitoes breed. Learn More Here.


'The Enemy Lives Among Us! Test Your Garden for "Bad" Nematodes' by Jefferson De Oliveira Barizon, MU Plant Sci & Tech May 27, 2022: Nematodes are among the most numerous and diverse animals on the planet (and yet one of the least understood). ... Fortunately, most soil dwelling nematodes are free-living and sometimes referred to as "beneficial" or "good" nematodes. They can help regulate microorganisms in soil, including plant pathogens, and recycle nutrients used by plants. Plant-parasitic nematodes (PPNs) are often referred to as "bad nematodes". PPNs can feed on or in plant roots. Most PPNs are soilborne and root feeders. Learn more here. 


'Diagnosing Holes in the Yard' by IA State University Extension: This guide helps diagnose what's digging, tunneling, feeding, and otherwise disturbing turf grasses here. 


'Gladden a late-summer garden with gladiolas' by David Trinklein for MU Extension May 25, 2022: Gladiolas colorful flowers are known botanically as spikes. Individual flowers on the spike are called florets. “Glads are somewhat unique in that the florets on the spikes all point in the same direction,” Trinklein says. Learn mor about this garden beauty here.


'Gardeners and Baseball Fans Swing into Summer' by Michele Warmund MU Plant Science & Technology June 1, 2022: Whether you are a St. Louis Cardinals or a Kansas City Royals fan, you can show your true colors in a baseball-themed garden this summer. Continue reading here.


'Curious Chemistry Guides Hydrangea Colors' by Henry Schreiber for American Scientist: The bloom colors are what really make the hydrangea stand out. More very informative information on hydrangea colors (maybe more than you want to know.). Read on here.


'PLANT-A-ROW: GROW A LITTLE EXTRA FOR A GREAT CAUSE' by Kristina Smotherman for Ozarks Food Harvest May 25, 2022: As you plant your garden or crops this year, you may think about the fresh veggies you’ll harvest, or the satisfaction of bringing in your own food, but do you ever think about our hungry neighbors who don’t have regular access to fresh produce? You can make a difference in your neighbor’s lives —Learn more here.


'Ornamental Grasses for Missouri Landscapes' by David Trinklein, MU Plant Science & Technology June 9, 2022: Ornamental grasses are considered by most gardens to be ideal landscape plants. They are quite vigorous, require minimal care and add aesthetic virtue in terms of color, form and texture to the landscape... learn more here. 


'Highly toxic poison hemlock in full bloom' by MU Extension June 8, 2022: With white spring lacy flower and fern-like leaves... Poison hemlock (Conium maculatum) is a weed that is highly toxic to humans and animals... Poison hemlock is one of the first weeds to green up in spring and grows up 6 feet high.... It is often mistaken for Queen Anne’s lace or wild carrot. Learn more here.


Mimosa aka Silk Tree (Albizia julibrissin) "The Missouri Department of Conservation recognizes Mimosa as a non-native and invasive tree. They discourage the planting of this species." Learn more from the MDC Field Guide. 


'Prepare for Japanese Beetles' By Brad S. Fresenburg Published by MU Division of Plant Sciences, Missouri Environment & Garden: Perhaps it is time to think about defensive practices when no end is in sight for this particular pest. Japanese beetles were accidentally introduced to the United States in 1916 by way of New Jersey. Since that time, they have become one of the most devastating landscape pests. Read on to learn more


'Crucial Period of Disease Management in Grapes' by Dean Volenberg MU Plant Science & Technology June 7, 2022: The period of time from immediate pre-bloom to 5-weeks post-bloom is when disease pathogens can cause catastrophic damage. Learn more here.


'Subterranean Termites' by Richard M. Houseman, MU Dept of Entomology: Four species of termites are reported to occur naturally in Missouri. All of these species are closely related and belong to the genus Reticulitermes. Termites are generally grouped into categories based on the habitat in which they live. Learn more here.


'Annual Cicadas in Missouri' by Missouri Dept of Conservation Field Guide: Adult annual cicadas have black, green, or olive-patterned bodies, often with a whitish cast on the underside, black or brown eyes, and 4 membranous wings with a black or green tinge. They crawl and fly but do not jump. Learn more about cicadas here

July's Tips and Tasks


July Gardening Tips by MU Extension Staff


Mulches

National Gardening Newsletter


15 Container Garden Plants That Will Thrive in Summer Heat


25 Low-Maintenance Groundcover Plants That Look Gorgeous


Best Way to Remove Weeds


Five Mistakes You're Making with Your Hydrangeas


How and When to Deadhead Hydrangeas to Keep Them Blooming


What to Do If Your Hydrangeas Aren't Blooming

Vegetable Gardening for Beginners: 16 Tips and Tricks


Companion Planting in Your Vegetable Garden


14 Colorful Vegetables to Try in Your Garden


Fruits and Vegetables That Grow in the Shade

ONE LAST THOUGHT Have you been to the Springfield Botanical Gardens at Nathanael Greene/Close Memorial Park, 2400 S. Scenic Ave, Springfield, MO? If not plan a group or family summer's visit today. In addition to the many beautiful floral and demonstration gardens, a number of gardening organizations are headquartered there, including MU Greene County Extension and the Master Gardeners of Green County. Questions call 417.891.1515 or tour the gardens and all of the other attractions online.

Get Your Soil Tested Now

Basic soil testing analysis is done by the MU Soil Lab in partnership with our Master Gardeners of Greene County. Results include fertilizer and lime recommendations. Additional tests are available for nutrient management plans, environmental issues, potting mixes, compost, manure and water usage. Each sample should contain a total of 2 cups of dry soil and from 6 to 7 inches deep and about 5 or 6 different areas. Results are typically provided within two weeks.


Bring the soil sample(s) to the Greene (or local county office) County Extension office between 10 a.m. and 4 p.m. on Thursdays. Master Gardeners can complete the paperwork and submit your test. One of our extension specialists will review your results. In most cases, gardens, lawns and fields should be tested every two years.


The cost is $30 per sample. Feel free to call if you have any questions:

417-874-2963.

Previous Newsletter
Need a Speaker for a Meeting or Group?
Master Gardeners of Greene County are unavailable at this time to speak to garden clubs, civic organizations, schools and other groups on a wide variety of topics within the world of gardening, horticulture, landscaping and the environment.

Please keep us in mind for a future date.


Donating to MU Extension

Without MU Extension, there would be no Master Gardeners.
Gifts from individual donors support MU Extension's educational programs in Greene County. Primarily, we receive cash donations by check or online with a credit card and the non-cash donation of vehicles.
 

Tax deductible donation

For all your gardening questions,

please call our Hotline: 

    

417-874-2963


The Hotline volunteers are available

10:00 am to 4:00 pm M-F

Please call before coming in with a question, sample or pictures.

Questions welcome state wide.


Continue to call, email us or send pictures to hotline@mggreene.org

These are three separate ways of contacting us.


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MGGC

Master Gardeners of Greene County, Missouri

417-874-2963

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