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Rose pest prevention?
We have several rose bushes (Wisconsin) which are healthy and thanks to the early spring uncovered and greening up. In the past, we have had problems with black spot, aphids and spider mites. We've treated these with chemical sprays which we don't really want in our yard due to pets. Is there a good natural preventive measure we can take now, before trouble starts?
8 Answers
- Anonymous9 years agoFavorite Answer
Ah, I'm a grower, but not of roses, but Yes I know what you mean.
Stay away from Chemicals! They're really unnecessary.
Neem Oil, organic and natural from the neem plant, is a great fungicide and pesticide. I haven't used it but did research on it, and am going to get it.
PennyRoyal Extract: Pennyroyal is an herb, and a great insecticide.
Comfrey Tea: you can feed your plants this, and it will do wonders from what I've read. Strong plants = better defense against problems.
Insecticidal Soap: I got some made by the espoma company. It's for organic gardening. Not all their insecticides and fungicides are though. (I think the particular soap is made from phosphate salts or something)
But most of their other products are really good for organic gardening, like kelp meal, rock phosphate, bone meal, etc. The garden tones....etc.
I heard tobacco too, but that sounds gross.
Perethin (SP.)- a natural insecticide made from the flowers of the chrysthanthemum (sp.)
also I heard wormwood plants are good for keeping away insects.....
There's ton of info on the net about naturals...but hopefully this gets you started!
Source(s): I also read that the best defense is keeping the plant super healthy so it can defend itself, but as we all know, bugs are bugs! And in the hot summers, humidity can be tough on plants. - FarmCzarLv 59 years ago
Sowaseed gave a pretty thorough answer on natural alternatives to chemical sprays, and his/her point about healthy plants being able to fight off pests is right on. Another thing you can do is incorporate plants for attracting beneficial insects to your garden. This web site has some good information:
http://www.grow-it-organically.com/attracting-bene...
Every spring, my rose buds would be covered with brown aphids, and just when I was tempted to spray with a soap spray, the soldier beetles would come in and strip off all the aphids in a couple of days, leaving only wispy mouth parts in the buds. They lived in the fields near my garden, but you can encourage them by planting native bunch grasses in patches and swaths around your garden. Plants with lacy foliage like dill, fennel, and yarrow attract ladybugs, and ladybug larvae are voracious predators of aphids. Planting abundant, tiny flowers like yarrow, thyme, dill, and alyssum provides nectar sources for tiny parasitoid wasps that lay eggs in aphids.
- Anonymous9 years ago
Garlic Oil Spray
Organic gardeners have long relied on garlic as part of their pest-fighting arsenal. Garlic contains sulfur, which, besides being toxic to pests, is also an antibacterial and anti-fungal agent. The dish soap in this mixture also breaks down the bodies of soft-bodied pests, such as aphids.
What You'll Need:
Three to four cloves of garlic
Mineral oil
Strainer or cheesecloth
Liquid dish soap
Water
Spray bottle
To make garlic oil spray, mince or finely chop three to four cloves of garlic, and add them to two teaspoons of mineral oil. Let this mixture sit for 24 hours. Strain out the garlic pieces, and add the remaining liquid to one pint of water. Add one teaspoon of liquid dish soap. This mixture can be stored and diluted as needed. When you need to spray, use two tablespoons of the mixture added to one pint of water in a spray bottle.
To use your garlic oil spray, first test by spraying an inconspicuous part of the plant to see if your mixture harms it at all. If there are no signs of yellowing or other leaf damage after a day or two, it is safe to use. If there is leaf damage, dilute the mixture with more water and try the test again. Once you have determined that it won't harm your plant, spray the entire plant, paying special attention to the undersides of leaves.
Warning: Garlic oil is a non-selective insecticide, which means that it will kill beneficial insects (such as lady bugs, who are natural predators of aphids) just as easily as it kills the bad guys. It's best to keep as many beneficial bugs around as possible. This spray should only be used if you haven't seen any beneficial bugs in your garden.
These sprays are easy to use, inexpensive, and effective. As you can see, even organic home remedies require care and attention to their effects. In general, use each spray as little as possible, and use it responsibly. You'll win the battle against aphids, and still have a healthy garden after they're gone.
Source(s): Cut and pasted response from http://organicgardening.about.com/od/pestcontrol/a... - ?Lv 45 years ago
Fungus and mould administration is extremely protection. you % to guard the plant from having the spores germinate. So maximum fungicides are covers, putting a action picture over the plant. Neem would okay artwork. additionally an fairly high-quality horticultural oil would artwork. regionally, some rose growers use buttermilk with a splash of flour, yet then in this dry climate ailments are not a brilliant deal. in case you're having distinctive problems, seek for suggestion from alongside with your interior reach rose society (attempt a internet seek: rose socieities in (your state). they might have a internet website with suggestings that are working on your area. for my area, if a plant is giving me suits with ailment, it is out of the backyard.
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- always b naturalLv 79 years ago
l have never used it, but l have read that tobacco juice is
very effective, and has been used for forever, lol
www.gardenguides.com/98164-use-tobacco-juice-control-pests-garden.html -