Anthracnose

What is anthracnose? This fungal disease affects many plants, including vegetables, fruits, and trees. It causes dark, sunken lesions on leaves, stems, flowers, and fruits. It also attacks developing shoots and expanding leaves. It can spread very quickly during rainy seasons.

How to Identify Anthracnose

  • On leaves, anthracnose generally appears first as small, irregular yellow or brown spots. These spots darken as they age and may also expand, covering the leaves.
  • On vegetables, it can affect any part of the plant.
  • On fruits, it produces small, dark, sunken spots, which may spread. In moist weather, pinkish spore masses form in the center of these spots. Eventually, the fruits will rot.
  • On trees, it can kill the tips of young twigs. It also attacks the young leaves, which develop brown spots and patches. It can also cause defoliation of the tree.

How to Control Anthracnose

  • Remove and destroy any infected plants in your garden. For trees, prune out the dead wood and destroy the infected leaves.
  • You can try spraying your plants with a copper-based fungicide, though be careful because copper can build up to toxic levels in the soil for earthworms and microbes. For trees, try a dormant spray of bordeaux mix.

Prevention

  • Plant resistant plants, or buy healthy transplants.
  • Plant your plants in well-drained soil. You can also enrich the soil with compost in order to help plants resist diseases.
  • Water your plants with a drip sprinkler, as opposed to an overhead sprinkler. Don't touch the plants when they are wet.
  • Keep ripening fruits from touching the soil.
  • Remember to rotate your plants every 2 to 3 years.

 

Comments

all my vegetables are coming

By martin maughan

all my vegetables are coming up now,and here come the pests.my garden bean leaves are slowly getting munched,looks to me to be some sort of tiny fly.and the ants seem to have a path straight across my garden.north to south.tried the ecco friendly home defense,states its plant oils,but 98% other ingredients-not named.well it deters ants for the day,but always a new group comes through.they are different species day by day.they do not seem to be hassling the plants(cucumbers,tomato,bellpeper,lettuce,corn, and cilantro)the soil here in az is terrible,but I mixed with sand,and fertalizer.all my plants are up now from seed.marigolds is the only flower i planted and they are just starting,as i was told most pests do not come around,due to smell I assume.well enjoy everyone-may you all have a bountiful year.

Any ideas on how to get rid

By Rosangela de Azevedo

Any ideas on how to get rid of slugs? I an trying to get rid of them and I cannot have big expenses on it.

Hi Rosangela, They don't like

By Sher

Hi Rosangela,

They don't like beer so if you put a container close to where your endangered plants are, they will be drawn to it, crawl in and drown (but what a way to go!). Also, they don't like copper at all and you can either put copper wire around your plants in a circle or I've seen copper tape at home and garden stores that does the same thing. Both of these ways are preferable to using strong chemicals and both work well but you will need to replenish the beer periodically. You could also try a big line of salt around your plants but this is rather unsightly and will need constant tending, especially in damp or wet weather. Good luck!

I just started using cornmeal

By Nancy Gasser

I just started using cornmeal the snails and slugs just love it. Place the cornmeal 2TBS into a glass jar laying on it's side and wait. We have eliminated both in our yard.

they hate sand ,,,,,,put it

By walter kinser

they hate sand ,,,,,,put it around your plants
kinserpumkinpatch@yahoo.com

See our slug page for

By Almanac Staff

See our slug page for ideas--many are inexpensive solutions: http://www.almanac.com/content/slugs

I have had very good results

By Brrenda Manning

I have had very good results using grits to get rid of fire ants. Just sprinkle the dry grits on the hills and the ants will eat them. When they take a drink of water the grits swell and burst the ants. The ants are usually gone by the next morning.

I have fire ants in my yard;

By LaDonna Adams

I have fire ants in my yard; but I cannot find their bed. We recently had a lot of rain; problem is this is the exact spot where I want to till the soil for a small garden in a week or so. Any suggestions on how to get rid of them?

I'm a Master Gardener in

By NC Gardener

I'm a Master Gardener in NC...this is what we recommend for organic controls...

2. Entrust®. The active ingredient in Entrust® is spinosad, which is made from spinosyn, a substance produced from the fermentation of a soil-dwelling bacterium. Entrust is very expensive but it only takes a tiny bit. For example, only 0.159 ounces of the pesticide is needed per gallon of water for a mound drench to treat fire ants. Each mound will require 1-2 gallons of the mixture depending on its size. Best results will be achieved if applied after a recent rainfall and when temperatures are between 65-85°F. Due to its high price, this product must be mail-ordered. Entrust® is used by organic growers for control of a number of vegetable pests. A one pound bag of Entrust® can retail for over $500, but this provides way more product than a single grower can use during one growing season which is why growers sometimes go in together to purchase a bag. Contains 80% active ingredient by weight.Suppliers include Johnny’s Selected Seeds and Peaceful Valley Farm Supply.View the Entrust® label.
3. Monterey Garden Insect Spray. This is another OMRI-approved spinosad product but it isonly labeled for home garden use. It is not for use on farms. This product is a liquid concentrate with 0.5% active ingredient.Suppliers include Biocontrol Network, Monterey, and Planet Natural.View the Monterey Garden Insect Spray label.4. Greenlight Fire Ant Control with Conserve. OMRI-approved spinosad product but it isonly labeled for home garden use. It is not for use on farms.
BaitsBaits are granular products that are collected as food by foraging ants. The bait granules (generally corn grit) are impregnated with oil to make them attractive to the ants as food. The ants take the bait back to the mound and feed it to the queen and the rest of the colony. According to North Carolina State University entomologist Dr. Hertl, the use of baits can reduce environmental contamination from insecticides since baits contain a very small amount of insecticide.Spinosad is the active ingredient in the organically approved baits.The best time to apply baits is in the early evening. Do not apply baits when the ground is wet as moisture can cause the oils in the bait to become rancid.Most bait products describe two options for applying the product: 1) broadcast application over a large area and 2) mound application of the bait over the mound and extending to about two feet from the mound.Mound applications are recommended because they will have the least impact on foraging native ants which directly compete with the imported fire ants. If bait is broadcast over a large area, it is likely to be ingested by foraging native ants and other insects.

Fire ant taking a bait granule back to the nest.

There are at least two organically approved spinosad baits:

1. Ferti-lome® Come and Get It! Fire Ant Killer. This product can be used on lawns and gardens, nurseries, pastures, and fruit & vegetable crops. See label for complete list of labeled use sites. Contains 0.015% active ingredient by weight.View the Ferti-lome® Come and Get It! Fire Ant Killer label. This on-line label does not have the OMRI label on it but this product is OMRI-approved and the actual bottles on the shelves now do have the OMRI label.
2. Greenlight Fire Ant Control with Conserve®. This product is labeled for use on lawns, around ornamental plants, and in home gardens (one acre or less). Contains 0.015% active ingredient by weight.These baits are available at both Pittsboro Feed and Country Farm and Home Supply in Pittsboro. Check your local farm and garden stores for supplies near you.

Spray plants with milk and

By Kathryn Evans

Spray plants with milk and water mixture, this works wonders!

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