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Articles by Dr. Frank Gouin

The Bay Gardener’s favorite side dishes

Like the Native Americans and the Pilgrims who learned from them, the Gouin family is sustained by our garden throughout the winter. I’m happy to share with you some of the ways we enjoy winter vegetables on Thanksgiving — and all season long.   Fall Vegetable Dishes If you had planted seeds or transplanted Brussels sprout seedlings in mid- to late-July … If you had planted seeds of collards, kale, turnips, carrots or spinach or transplanted broccoli, cauliflower,...

Test and treat your plants before bringing them in

A friend told me the leaves of her Ficus benjamina are covered with black soot. I suspected that the plant had been infected with a soft-scale insect that exudes a honeydew substance that breeds sooty mold. However, upon examining the plant, I saw it was severely infested with spider mites. If you moved your houseplants outside for summer, there is a good possibility that they are infested with spider mites. Spider mites are tiny insects about the size of dust particles. On houseplants, look...

When not getting his hands dirty in the soil, the Bay Gardener keeps busy restoring old boats and making new ones

Wife Clara claims that my desire to build and restore boats can be traced to Viking genes in my blood. I remind her I am of French Canadian descent with Algonquin heritage. Her rebuttal is that Vikings invaded northern Europe where my French ancestors lived.   In the 20 years we’ve lived on Rockhold Creek in Deale, I have built two boats, with a third under way, and restored two more — plus a 1949 John Deere B tractor and, now, a 1939 Allis Chalmers B tractor. Clara is still...

That’s a choice you have to make in buying cherries, peaches, plums and nectarines

  Every year, I am asked if the peaches and nectarines that I sell are grown organically. The answer is no. We cannot grow stone fruit crops such as peaches, plums, nectarines and cherries without having to use both insecticides and fungicides. All of these crops are extremely susceptible to brown rot, rusts and insect damage from beetles, curculio, aphids, mites, stink bugs, borers, etc. At present there are no organic or biological controls for the insects that attack these crops. Many...

Depends on how you define it

  I am frequently asked if I am an organic gardener, based on my reputation for having been heavily involved in composting and compost utilization research since 1972. My answer is yes and no. The importance of organic matter in soils and the use of compost to improve and maintain soil productivity is not thoroughly appreciated. In my gardening practices, I use a combination of compost and chemical fertilizers and minimize restricted-use pesticides as much as I can. Based on my many years...

Carol Allen scores with Francis R. Gouin Undergraduate Research Grant

  Botanical gardens have always had difficulty keeping plant viruses out of their orchid collections. While working at the U.S. Botanical Garden in Washington, D.C., Carol Allen often noticed small indentations or notches on the aerial roots of orchids in the conservatory. One evening, she saw cockroaches crawling over the roots. Could they be the culprits spreading viruses between contaminated plants and newly arrived virus-free plants? Always before, virus transmission between plants had...

The spate of Code Orange days have our plants gasping for breath

  A Bay Weekly reader asked me why his Heritage birch was dropping its leaves despite the fact that it was under irrigation. The answer was simple: air pollution. The Heritage birch is a clone of river birch, and river birch trees are extremely sensitive to ozone and sulfur dioxide. Since the middle of June, we have experienced several days of Code Orange, and in early July we have also experienced Code Red. This means that air pollutants are sufficiently high to affect humans, and the...

How to prune your bare-bottomed hedges

  A neat, completely green sheared hedge of privet can be very attractive in a landscape. But most often the bottom branches lose their leaves, and the hedge quickly loses its attractiveness. This is a common problem and one that can easily be corrected, as I showed in a recent pruning workshop that required rejuvenating an old privet hedge with nothing but naked branches on the lower half.  Plants lose their bottom leaves because those leaves are being shaded out by branches and...

It makes no nitrogen to spare

  A few weeks back (June 3), we talked about how to grow a clover lawn. There are advantages to clover, but feeding the grass isn’t one of them. It’s true that clover is a legume, and it fixes its own nitrogen from Earth’s atmosphere. But clover won’t fertilize the lawn where it’s growing.  The nitrogen that clover fixes is totally utilized by the clover plant and is not released into the soil unless the clover plant is killed. Only after the nitrogen has...

With lots of fruit and few demands,
what’s not to like?

  There is nothing like eating a freshly picked ripe fig. They are as sweet as honey and taste heavenly. There is no reason why every home gardener should not be growing at least one fig plant. Contrary to my earlier predictions, the tops of the fig plants were not killed by the severe winter. Matter of fact, figs are growing in almost every node of each stem of the plants growing outside our bedroom window. Last year, most of the fig plants in our area were killed back half-way and...