Here, there and everywhere – Mushrooms are popping up all over!

Guest Post by Leon County Family & Consumer Sciences Agent Heidi Copeland (pictured)

With all the rain of late, there seems to be an interest in mycology.  You know, the fruiting body of fungi called mushrooms!  Edible mushrooms in particular.

It is not unusual; our subtropical summer weather tends to make some fungi flourish!  Moreover, apparently, there is a bumper crop of fungi this year. Phone calls to the University of Florida/IFAS Extension office about eating mushrooms has increased.  Individuals have even brought mushrooms to the office inquiring if they are of the edible variety.

Our reputation as Extension Agents would certainly be damaged if we did not adhere to a few rules… always read a label, use research-based information, and NEVER tell anyone that a mushroom is edible.  It is not that there are not delicious wild mushrooms out there; a recent July 2017, publication of Microbiology Spectrum estimates millions of species.  However, even the scientists do not agree as only about 120,000 of them have been described, so far. Not all are edible. Some fungi are poisonous to the point of being deadly.

Matt Smith, an Assistant Professor in the Department of Plant Pathology and the curator of the UF Fungal Herbarium (FLAS) knows a lot about mycology.  In fact, he is also the curator of the fungal herbarium managed by the UF Department of Plant Pathology at the Florida Museum of Natural History in Gainesville.  The fungal herbarium is a valuable resource and its collections have many important aspects including information about fungi that are deadly poisonous to humans and pets when consumed.

Lion’s Mane mushroom. Credit: Robert Smith; Cabin Bluff Land Management; Bugwood.org

In addition, the UF fungal herbarium is participating in a National Science Foundation-funded project to digitize and database as many US macrofungi collections as possible. This project, the Macrofungi Collection Consortium, includes 34 institutions in 24 states. The project began in July 2012 and will aim to capture data for roughly 1.3 million fungal specimens.

With that said, there is enough scientific research out there to conclude mushroom identification is indeed difficult. Many mushrooms look similar, but are oh so different!

If you are truly interested in eating what you forage MAKE time to study, with experts!  Mushrooms, particularly those you plan to eat that are not identified correctly could send you to the emergency room … or worse.  The toxicity of a mushroom varies by how much has been consumed.  Poisoning symptoms range from stomachaches, drowsiness and confusion, to heart, liver and kidney damage. The symptoms may occur soon after eating a mushroom or can be delayed for six to 24 hours.

Chanterelle mushroom. Credit: Chris Evans; University of Illinois; Bugwood.org

Delayed symptoms are common.  Seek help immediately if you think you may have eaten a poisonous mushroom, even if there are no obvious signs of toxicity. Call the Poison Center’s 24-hour emergency hotline at 1-800-222-1222. You will receive immediate, free and confidential treatment advice from the poison experts.

And if you are determined to make foraging for food a recreational hobby or even want to learn more about what is in your Florida yard, the book Common Florida Mushrooms by University of Florida’s Institute of Food and Agricultural Sciences Emeritus Faculty Dr. James Kimbrough, identifies and describes 268 species of mushrooms found in the sunshine state.

Most importantly, teach your children to NEVER eat any mushroom picked from the ground. It is indeed better to be SAFE than sorry.

People who are interested visiting the fungal herbarium should contact:

Dr. Matthew Smith
email: trufflesmith[nospam]@ufl.edu

Extending the Season for Leafy Greens

Are you interested in growing lettuce and other leafy greens?  Are you looking for tips on extending the growing season for your leafy green crop?  If so, then check out this very informative instructional video by Washington County Horticulture Agent Matthew Orwat.

How Did I Get Rust On My Blueberries?

Normally we think of rust as something that deteriorates metal, but a number of different fungal rusts can affect plants in the garden.  Rust disease can affect corn plants, cedar trees, and even blueberry bushes.  Just like the broad range of plant species that can be plagued by rust, there are a number of species of rust fungal spores floating around and ready to infest your garden.  This article will focus on leaf rust of blueberry.

Blueberry rust on top of a leaf.

Blueberry leaf rust on the top of a leaf. Photo Credit: Philip Harmon, University of Florida/IFAS Extension.

Leaf rust of blueberry in Florida is caused by the fungus Pucciniastrum vaccinii.  Although the common name of the disease is “leaf rust”, the disease can also infect the stems and fruit of blueberry plants.  The disease causes small, round spots visible on the tops of leaves.  Spots will multiply and the leaves will eventually yellow and fall off.  Young stems and green fruit can also become infected as the disease progresses.  Bright orange lesions will form on stems and fruit as the thousands of microscopic spores conjoin.  The clusters of spores are easily wiped or washed off of plant material.  When spores dry out, they become airborne and can be transferred to nearby plants.

Blueberry leaf rust on fruit.

Blueberry leaf rust on fruit. Photo Credit: Philip Harmon, University of Florida/IFAS Extension

The rust fungus thrives in hot, humid, wet conditions.  A number of cultural practices can be adopted to reduce disease progression and survival.

  • Irrigation

    Disease persistence can be reduced by limiting the amount of water that contacts the plant leaves.  Water the base of plants or install drip irrigation for your bushes rather than watering from overhead.  If overhead irrigation is the only option, then water plants in the morning rather than in the evening.  This allows the leaves to dry out over the course of the day.

  • Pruning

    Removal of approximately 25% of the oldest canes in late winter before spring growth begins will stimulate the production of new canes and should result in plants with canes of different ages and will provide a good mix of vigorous branching and fruit production.  Moderate summer pruning can also improve yield and shoot growth. When pruning, cut out vigorous shoots that are growing well beyond the desired canopy height and are in the interior portion of the bush.  This will promote a more open growth habit and help with air circulation on the remaining plant material.  Some vigorous canes developing from the ground and growing on the outside of the bush can be topped to stimulate branching and flower bud formation.

  • Mulch

    Pine bark mulch helps with establishment of young plants and helps keep soil pH low in existing plantings.  A layer of aged pine bark 3 inches deep extending about 2 feet out from the plants will provide a good growing medium for surface feeder roots.  Pine straw can be used if pine bark is unavailable.  Mulch also moderates soil temperature, helps keep weeds at bay, and adds organic matter to the soil.  Make sure to keep mulch raked back about three inches away from the plant canes to provide good air circulation to the roots.

Hopefully this article has given you some tips to have a good blueberry crop for years to come.  For more information on growing blueberries in Florida, please visit the University of Florida/IFAS EDIS Publication: Blueberry Gardener’s Guide.

The Fig

The Fig

Summer is full of simple pleasures—afternoon rainstorms, living in flip flops, and cooling off in a backyard pool. Among these, one of my favorites is walking out my door and picking handfuls of figs right from the tree. Before we planted our tree, my only prior experience with the fruit was a Fig Newton—I’d never eaten an actual fig, much less one picked fresh. Now, they are my favorite fruit.

Ripe figs are a deep shade of pink to purple. Larger green figs will ripen in a few days. Photo credit: Carrie Stevenson

When ripe, figs are a deep shade of pink to purple. Larger green figs will ripen over the course of a few days. Photo credit: Carrie Stevenson

Native to Asia Minor and the Mediterranean, figs were introduced to Florida in the 1500’s by Spanish explorers. Spanish missionaries introduced these relatives of the mulberry to California a couple hundred years later. Figs are best suited to dry, Mediterranean-type climates, but do quite well in the southeast. Due to our humidity, southern-growing figs are typically fleshier and can split when heavy rains come through. The biggest threats to the health of the trees are insects, disease (also due to our more humid climate) and root-knot nematodes.

Fig trees can grow quite large and produce hundreds of fruit each year. Photo credit: Carrie Stevenson

Fig trees can grow quite large and produce hundreds of fruit each year. Photo credit: Carrie Stevenson

Our tree started out just a couple of feet tall, but 12 years ago we replanted it along a fence in our back yard. It has grown so large (easily 25 feet tall and equally wide) that it hangs over our driveway, making it handy to grab a few as I hop in the car to run errands. The tree is in full sun at the bottom of a slope, and seems to be a satisfied recipient of all the runoff from our backyard. This position has resulted in a thick layer of soil and mulch in which it thrives.

We usually see small green fruit start to appear in early May, becoming fat and ripe by the second half of June. The tree produces steadily through early August, when the tree’s leaves turn crispy from the summer heat and there’s no more fruit to bear. The common fig doesn’t require a pollinator, so only one tree is necessary for production. The fiber-rich fig is also full of calcium, potassium, and vitamins A, E, and K. As it turns out, the “fruit” is actually a hollow peduncle (stem) that grows fleshy, forming a structure called a synconium. The synconium is full of unfertilized ovaries, making a fig a container that holds both tiny flowers and fruit in one.

The insides of a fig show the small flowering structures that form the larger fruit. Photo credit: Carrie Stevenson

The insides of a fig show the small flowering structures that form the larger fruit. Photo credit: Carrie Stevenson

With the hundreds of figs we’ve picked, my family has made fig preserves, fig ice cream, baked figs and of course eaten them raw. We typically beg friends and neighbors to come help themselves—and bring a ladder—because we can’t keep up with the productivity. Often you can tell you’re near our tree from around the block, as the aroma of fermenting fruit baking on the driveway is far-reaching.

No matter what you do with them, I encourage planting these trees in your own yard to take full advantage of their sweet, healthy fruit and sprawling shade. As Bill Finch of the Mobile (AL) botanical gardens has written, “fresh…figs are fully enjoyed only by the family that grows them, and the very best figs are inevitably consumed by the person who picks them.”

 

Still Time for Parsley

Still Time for Parsley

Parsley is one of the most well-known herbs, and if you missed the fall planting, there is still time to choose a preferred selection for late winter/spring planting.

An herbaceous biennial, parsley is an easy herb for containers or small garden spaces. You may purchase a small pot at the nursery or grow from seed.  Realize that seeds do best when soaked in warm water for 24 hours prior to planting and may not germinate for several weeks.  Be sure to mark the area well so you remember not to overplant with another herb or vegetable.

Choose an area or soil that allows for good drainage and full sun in the cooler months. During the heat of summer, parsley does prefer a little break from afternoon sun. Consider planting in pots so plants can be moved during the hottest months.  Plants will prefer water during times when rainfall is lacking, but the taproot does allow the plant to survive some drought.

There are different types of parsley you may choose but the most common types sold in stores are the curled leaf parsley and the Italian parsley. The Italian parsley has a stronger flavor and holds up a little better during cooking.

Curled leaf parsley. Photo: Beth Bolles

Curled leaf parsley

Italian parsley. Photo: Beth Bolles

Italian parsley

 

Parsley is an attractive plant as a garden border or in a mixed container but will likely have a visitor during the warmer season that will feed on the leaves. The black swallowtail butterfly will use parsley as a host plant so plant enough to share with the butterflies.