Feeds:
Posts
Comments

Posts Tagged ‘bleach’

Now IS still a good time to start your seeds, especially your true heat lovers – eggplant, limas, melons, okra, peppers and pumpkins, and for you SoCal coastal marine layer gardeners, tomatoes!

Beautiful Scarlet Runner Bean Seeds

When you start them, for your sanity, label your seedlings with their name and date!   

Hmph.  How hard could it be, soaking seeds?!  It isn’t, but it turns out there are lots of options and some specifics for better results!

Whether you only soak your seeds, or go on to presprouting, is your choice.  For me, I found once they started sprouting, growth was rapid!  At that stage, they can’t dry out or be too wet and rot, so you have to be ready to plant!  Also, it is more difficult to very carefully plant sprouted seeds.  They are delicate!  So if you are at all bull-in-the-China-shop like I am, it may pay to only presoak!

The main arguments for seed soaking are not only for a speedier garden [Sprouted seed will grow in soils too cool for germination, YES!, but also for more complete germination of all seeds planted. You can get germination results in 3 to 4 days, while without pre-soaking it may take 2 weeks of unfavorable germinating conditions, and you may get none.  Whether you plant directly in the ground, or for those of you at Pilgrim Terrace planning on using the greenhouse, here is some very useful info on seed soaking!

The Harrowsmith Country Life Book of Garden Secrets, by Dorothy Hinshaw Patent & Diane E. Bilberback:

The seed coat that surrounds the living seed sometimes does more than just protect it. The seed coats of many plants contain chemicals that inhibit germination of the seeds. This keeps them from germinating too early or when only briefly exposed to moisture. Some gardeners who are interested in rapid germination soak and wash their seeds to get around these germination inhibitors.

Some types of peppers, such as jalapenos, may germinate more rapidly if soaked in a couple of changes of lukewarm water before planting.

Beet and chard seeds also have a germination inhibitor; these strange-looking lumpy “seeds” are not really seeds at all but dried-up fruits of the plant, each of which contains several seeds. (That’s why beets and chard always need to be thinned.) The hard fruit covering contains a germination inhibitor, but if you soak the seed (fruit) overnight, it will absorb too much water, and you will still have poor germination.Seed coats play other important roles in the lives of plants. They regulate how much oxygen, water, and light the seeds receive.

You may have planted beans or corn in soil that was very moist but cool and were dismayed by subsequent poor germination. The seed coats of these crops can allow water to rush into the seeds too quickly, as with beets. This rapid water uptake can damage the tender cell membranes, permanently harming a young seedling so it grows slowly or preventing germination altogether. This process has been termed imbibitional shock, or soaking injury. Soaking injury can occur at any time with some crops, but cold temperatures make it worse.To avoid soaking injury, you can allow the seeds of sensitive crops such as beans, beets, and corn to soak up water gradually before planting them in the garden. This method is called seed moisturization.

One way to do this is to place them in moist vermiculite for eight to sixteen hours before planting. An easier method for most home gardeners is to place damp paper towels on a sheet of wax paper, sprinkle on the seeds you want to hydrate, and roll up the towels with the wax paper on the outside. Leave the seeds inside the paper for eight to sixteen hours at room temperature. Don’t let them sit for more than nineteen hours, or the delicate seedling root may begin to penetrate the seed coat, and you could damage it during planting.

Things to know plucked from the web….  

Start with viable seed.  Check the date on the seed pack to see when it was packaged for.

It won’t do you a bit of good, for example, to presoak lettuce seeds and expect them to germinate in a soil temp of 87 degrees, as they prefer a cooler-temperature. So start your pre-soaked seeds at the temperature and time you generally plant. Pre-soaking just gives you faster performance under normal conditions.

There are huge variations in the length of time people soak their seeds!

  1. Tomato and Pepper seeds are soaked 6 hours, no more that because they can suffocate from lack of air.
  2. overnight in tepid water. That is water that is warm, but not hot. I make sure that the seeds are covered at least twice their size with water. I don’t add anything to the water, but when planting them, I do water them in with manure tea.
  3. Soak them for 12 hours in compost tea, then rinse & drain. Rinse & drain each day, keeps the seeds moist until you have roots.  With beans, the roots emerge from the scar.  Plant the seed endwise, the root pointing down.  Plant roots and shoots at the soil surface, the bulk of the seed below the soil mix surface.  Keep moist.
  4. Soaked in tepid well water for six hours. The water was then poured off and the seeds were rinsed a couple times a day with some misting in between. The seeds were planted once they had visible roots.
  5. 12 hours in water, then drain and leave for 12 hours, then keep repeating the process until they split their skins and start showing a root. It normally only takes 2 or 3 days and then I plant out.
  6. Bean seeds may split if soaked for more than an hour or two. However, even this short soak will speed up germination
  7. When legume (peas/beans) seed coats split, the seeds may lose vital nutrients and fall prey to disease fungi when planted.  Drain them after they have been submerged for an hour.
  8. I do think I’ve oversoaked bean and pea seeds in the past, almost to the point where they are falling apart, and that it has weakened them. The soak time would depend on the size of the seed I would think, but never more than a few hours.
  9. I let them soak ‘til they are big and full, or ‘til they start to sprout a small root. Corn, beans, peas, squash (some) and pumpkins. Then I gently place them in the ground.  [Tweezers, please?!]
  10. OKRA !!!! (48 hours)  Or… I presoak my okra seed in 1 pint of warm water containing 1 tablespoon of household bleach to pre-soften the seed for 24 hours before planting.
  11. Cucurbita (cucs, luffas, melons, squash) seeds only needs to be soaked to loosen up the shell. Gourd seeds in particular are very tough and some people even scratch the sides of tips (scarify) to make it easier to germinate. I soaked them a little and also wrap them in wet toilet tissue before planting. This will help to keep them moist.

The soaking solution varies…see compost tea, manure tea above.  And what about worm tea?!

  1. Last year I soaked my bean seeds in a kelp solution before planting and they sprouted in about 2 days.
  2. I would never use bleach in the soaking solution. If you are worried about contamination, try soaking in chamomile tea or 3% hydrogen peroxide instead. If the seed is purchased, I wouldn’t bother.
  3. Hydrogen peroxide, both in soak and rinse solutions:1 oz. of  3% H²O² to 1 pint of water.  Sprouts come up faster.  Some people have reported 3/4″ sprouts in 24 hours.   

When you plant the seedlings dig the hole and spray it with peroxide. Wet it good and then wet the roots of the seedlings or small plant.   

The vegetable that gave me a problem was the cabbage. I was determined to conquer the cabbageworm. Years ago I sprayed the cabbage plants with peroxide to no avail. This year I soaked the cabbage seeds before planting them. There were no signs of the bug until the cabbage plants were almost full grown, then I poured about a quarter of cup of 8% peroxide over the cabbage, letting it flow down into the layers of the leaves. That stopped the cabbage bugs. 

Please see more tips… Part 2!  Scarifying  your seed, how to plant wet seed, better hot weather germination, water tricks!

Back to Top

Read Full Post »

What’s happening with my tomatoes?! 

Early BlightFusarium Wilt, Verticillium WiltLate Blight

Tomato – Healthy SunGold!

Tomato – Verticillium Wilt, Yellow Flag effect

This?!                                                 Or this?

This is bar none, the most common summer question I get asked! Potatoes, tomatoes, and the various forms of lettuce are the top three favorite vegetables in the US, so you can see why this is THE question! Since fungi spread as simply as by the wind, I will be campaigning for more tomato plant care, starting with what people can do now to keep the fungi from overwintering, then in the spring to lessen its chances. There are more things that can be done than I knew! Read on!

About Fungi  To emphasize the potency of these fungi: Late Blight of potatoes and tomatoes, the disease that was responsible for the Irish potato famine in the mid-nineteenth century, is caused by the fungus-like oomycete pathogen Phytophthora infestans. It can infect and destroy the leaves, stems, fruits, and tubers of potato and tomato plants. Before the disease appeared in Ireland it caused a devastating epidemic in the early 1840s in the northeastern United States. Not only do the fungi feed on your tomato plants, but take a look at your potatoes, peppers, eggplant, cucumbers and beans! See those yellowing leaves? Remove and dispose of them ASAP! That removes zillions of spores so they can’t spread. The wilts and blights also affect trees! Sadly, not only do your plants look depressing, production is zilch, they die an unnatural death. Remove, replace. Be happy.

How do fungi work?  Spores are spread by rain/watering splash, insects, and wind, and through our hands and tools (wash your hands and tools after handling infected plants) and through these mediums, can travel distances. That’s why it is so important, in our community garden, to tend our plants, so our neighbors’ plants won’t also be infected.  Educate your plot neighbors, better yet, send this to them! Spore spread is most rapid during conditions of high moisture, marine layer days, and moderate temperatures (60°-80°F). Once established, the fungi can over winter in your garden on debris and weeds.

What they look like on your plant: 

Tomato – Early Blight

15 Fungi Preventions!

Cultural control practices alone won’t prevent disease during seasons with wet, cool weather. However, the following measures will improve your chances of raising a successful crop.

Things you can still do this season!** Things you can do now to prepare for next season!**
  1. Buy toms that are tagged VFN, or just VF – that’s Verticillium Wilt and Fusarium resistant or tolerant. Varieties that set fruit early, at lower temps, are Early Girl Improved, Fourth of July, Enchantment. Excellent resistant varieties are Champion, Husky Red, Better Boy, Ace Hybrid, Celebrity.  
  2. Plant only healthy-appearing tomato transplants. Check to make sure plants are free of dark lesions on leaves or stems. If starting transplants from seed, air-dry freshly harvested seed at least 3 days.
  3. Plant cukes and toms on a special raised mound/basin with the bottom of the basin above the regular soil level. See more on this page in the section, Special Planting and Growing Tips!
  4. Remove volunteer tomatoes and potatoes.  If they are a not a resistant or tolerant variety, when they get sick, they increase the chances of your resistant varieties having to fight harder to live, and your good plants may not win the battle.  Do not let volunteers grow, even on compost piles, cute as they are. Infected tomato refuse should be put in the trash, NOT in green waste or your compost.  
  5. **Create a soil barrier, mulch! Newspaper/cardboard covered with mulch or grass clippings doesn’t let the soil dry out. Moist soil is fungi habitat – we want that soil to dry. Use no more than one inch of straw. It is easy to lay on and allows light to get through and air to flow and dry the soil, stops the splash factor. Above all, you don’t want wet soil to contact your plant’s leaves. When that straw gets tired and flattens, trash it and replace with new clean light fluffy straw.   
  6. **Avoid wetting foliage when watering, especially in late afternoon and evening. Water at ground level! Watering the leaves creates a humid micro climate; the fungus produces spores. Dry leaves. Dry leaves. Dry leaves. No moisture, no spores.  
  7. **Air circulation, plant staking and no touching. Air circulation allows the wind to blow through your plants. This allows the timely drying of leaves and it helps break up micro climates. If your plants are packed too tightly together, they themselves become barriers to drying. Staking your plants to poles and using cages helps them grow upright and it creates gaps between the tomato plants. You want wind and sun to reach through and around your plants. And getting more sun, your toms will ripen sooner! Moisture is needed for fungi to spread. Dry is good. Tomatoes should be planted with enough distance that only minor pruning is needed to keep them from touching each other. In the case of tomatoes, scattered interplanting, biodiversity, is always a better choice than row planting where disease easily spreads from plant to plant.  
  8. **Spray proactively. Wettable sulfur works. It is acceptable as an organic pesticide/fungicide, is a broad spectrum poison, follow the precautions. It creates an environment on the leaves the spores don’t like. The key to spraying with wettable sulfur is to do it weekly BEFORE signs of the disease shows. Other products also help stop the spread. Whatever you select, the key is to spray early and regularly.  
  9. **When they are about a foot tall, water neighboring plants, but not your toms. Plant water loving companion plants, like Basil or the Plant Dr Chamomile, next to your toms; water them all you want! Make a basin around your toms to keep water OUT! That keeps the soil drier near your plant, so the fungi can’t thrive there. Your tomatoes will get plenty of water by their deep roots.  
  10. **Remove bottom leaves, again, no touching (the ground), and prune your plants. Barbara Pleasant at Mother Earth News says, ‘When the lowest leaves are removed just as the first leaf spots appear, you also remove millions (zillions) of spores. And, because the bases of pruned plants dry quickly, the spread of the disease is slowed because early blight fungi need damp leaves in order to germinate and grow.’ Create an 18 to 24 inch barrier gap or safe space between your garden soil or mulch and the first leaves of the tomato plant. If the spores can’t splash upwards and reach the leaves, they can’t take hold. The stem usually isn’t a place for the spores, though it can be. Best is to remove the bottom leaves before the spores start!
    .
    If you have large plants, you might consider thinning some branches to let the sun and wind blow through the main body of your tomato plant. But, some gardeners don’t recommend pruning or snipping the suckers, the mini branches formed between the trunk and branches, because spores can enter through these cuts. If you decide to prune, the less cuts the better. Prune on hot, dry, unwindy days, mid morning to midday, after dew has dried, so cuts can dry and heal with less chance of airborne fungi getting into them. Try not to touch the cuts after they have been made. Use clippers for a clean cut. Wash your hands, in a rinse of water & alcohol, frequently so you don’t further infect healthy parts of your plant.  
  11. **Remove infected leaves immediately. A leaf should be completely green. Look for brown spots or yellow spots or distress. Remove leaves and prune when it is dry and sunny, not windy. Wash your tools and hands often.  
  12. After the tomatoes set, add some nitrogen. A healthy plant tends to fight off the spores. You don’t want to add too much nitrogen to your tomatoes before they set fruit. Too much nitrogen before fruiting leads to more leaves and less fruit. Add N only once.  
  13. **Rotate your crop if possible. Because fungi also affect other plants, rotation in small gardens isn’t practical or even possible. But if you have the room, move your tomatoes to areas that are fungi free.  
  14. ****At the end of the season remove & trash, don’t compost or put in green waste, all infected debris and surrounding debris. Pull all the weeds because spores can over winter on weed hosts. You want to reduce the number of spores laying in wait.  
  15. **The spores aren’t super spores. During our winter season, turn your soil about 10 inches, burying the spores helps remove them, and it also exposes snail eggs to die.

Preventive Foliar Mix that does wonders! 

Apply every 2 to 3 weeks, so new growth will be covered.  Wet under and over the leaves.  Per gallon add:

  • One crushed regular strength aspirin
  • 1/4 Cup nonfat powdered milk
  • Heaping tablespoon baking soda
  • 1/2 Teaspoon mild liquid dish soap

Water your plants with an aspirin?!  Salicylic acid, in aspirin, triggers a defense response in tomatoes and other plants as well! Adapted from eHow:  The main benefit of aspirin in planting involves aspirin’s ability to fend off potential plant diseases.

  1. Purchase regular strength aspirin. The brand does not matter; purchase the cheapest brand that is available.
  2. Mix together one aspirin with one gallon of water. Combine the ingredients well, so that the aspirin is distributed evenly throughout the liquid.
  3. Add a half teaspoon of mild liquid soap to the mixture. This is used as a way to help the aspirin water stick better to the tomato plants. Once the soap is added, attach a spray nozzle to the gallon jug and it is ready to use.
  4. Spray the tomatoes when you first set them in the ground. Aspirin sprayed directly on seeds improves germination, on plants it stimulates the growing process. There is no need to soak the area. A light and gentle spray will suffice.
  5. Continue to spray the aspirin mixture on the tomato plants every 2 to 3 weeks. You are going to notice that the plants stay healthier and attract fewer insects.

Per a comment by Leroy Cheuvront at Heavy Petal blog:  I have had the blight and have stopped it from destroying my tomato plants. All you have to do is mix 1/4 cup of bleach to a gallon of water and drown the plant from top to bottom, it will not kill the plant. I do it every seven days and the blight has not returned.  — June 18, 2010. It sounds scary, but I bet it works! I would test this principle on ONE plant to be sure it is safe to use.

Solarization  In the past ten years, some enterprising Israelis came up with solarizing. Moist soil is covered with transparent plastic film for four to six/eight weeks in the summer. It takes that long to heat the soil to a temperature and depth that will kill harmful fungi, bacteria, nematodes, weeds, and certain insects in the soil. Some gardeners won’t use solarizing because it kills beneficial soil organisms too… Solarization can be a useful soil disinfestation method in regions with full sun and high temperatures, but it is not effective where lower temperatures, clouds, or fog limit soil heating. Solarization stimulates the release of nutrients from organic matter present in the soil.

Solarization

Solarization also kills grass by heating up the soil when daily temperatures exceed 80°F. Weed eat or mow the area as short as possible. Moisten the soil and cover the area in clear plastic for 10-14 days, until the grass is dead. Although cloudy weather will slow things down by cooling the soil under the film, a few weeks of sunshine will improve your soil dramatically, easily, and inexpensively. If you live in an area with cool or cloudy summers, or if you just don’t want to wait all season, you can speed up the process by adding a second sheet of plastic. Using the hoops commonly used to elevate row covers or bird netting, raise the second sheet of plastic over the ground-level sheet. The airspace between acts as a temperature buffer zone during cloudy weather and the combination of the two sheets of plastic serves to raise the soil temperature an additional 6 degrees. The goal is to raise and maintain temperatures in the top 6 inches of soil to a level between 110 to 125 degrees F. After several days of sunshine, soil temperatures rise to as high as 140 degrees at the surface and well over 100 degrees as far down as 18 inches. Do not mix untreated soil into the solarized bed!

And please, do NOT compost diseased tomatoes, infected trimmings or removed leaves, or any other diseased plant. That’s how you spread soil borne fungi, let alone that they are also spread by wind, are airborne. Put them in the trash, not green waste. If your neighbor has a diseased plant, don’t be shy to respectfully and gently ask them to remove it. Remember, they raised that child. How hard was it for you to give up your plant? Especially the first time. See? They may not even know about wilts. Educate them if possible. Tell them how you learned about it. Offer to send them the link to this page.

Biofumigation  Biofumigation is a sustainable strategy to manage soil-borne pathogens, nematodes, insects, and weeds. Initially it was defined as the pest suppressive action of decomposing Brassica tissues, but it was later expanded to include animal and plant residues. 

Other Tomato Questions & Cures – Holes, spots, brown areas?  Here is an IPM (Integrated Pest Management) image page from UC Davis that is likely to answer your question! It includes diseases and pests. Do take a good look at it!

To the fattest, bestest tomatoes ever!!!! 

Back to Top

Updated 6.11.19


The Green Bean Connection newsletter started as correspondence for the Santa Barbara CA USA, Pilgrim Terrace Community Garden. All three of Santa Barbara city community gardens are very coastal. During late spring/summer we are in a fog belt/marine layer area most years, locally referred to as the May grays, June glooms and August fogusts. Keep that in mind compared to the microclimate niche where your veggie garden is. Bless you for being such a wonderful Earth Steward!

Love your Mother! Plant bird & bee food! Think grey water! Grow organic!

Read Full Post »

%d bloggers like this: