Mildew infection in young hawthorn - HELP !!!!?

I recently planted a hawthorn hedge and I've noticed some of the plants are covered in a powdery mildew-like substance. What is the best thing to treat these with as the ones infected are not thriving and I'm worried about this problem spreading.

Mildew infection in young hawthorn - HELP !!!!?
You will undoubtedly get many responses to this question. My first question to you would be why have you not questioned the person you bought them from!


The next steps are going to take more labor and money than it cost to buy the plants. You are going to need to purchase a hand-held sprayer, a set of pruning shears, a one gallon bucket, a quart of Clorox Bleach, some basic granular 10-10-10 with minerals fert, and enough Shred Cypress Mulch to cover the entire area with 2".


Frankly, I would return the product to the supplier, however, once in and liked you do as you wish.


If you spread any mulch after you planted the hedge remove it entirely and immediately. This could be the source of your problem. Half fill a bucket with warm water and use about 1/2cup/gallon of Clorox Bleach in the bucket. Take the pruning shears and cut from the base to six inches any and all limbs. After each cut dip the shears in the clorox solution bucket. Wear Rubber or Latex Gloves!


One school of thought, which may be appropriate for you, is to use a true sponge and wipe off the leaves with the Ivory Soap solution. Since this is a hedge and not a houseplant that does not seem practicle. Mix 1 Tbls. of Pure Ivory Soap Dish Detergent per Gallon of water. Spray the top of the leaves, the base of the plantings, and the underside of the leaves. I suggest you change gloves before beginning this operation. You can prune at anytime, however, do the Ivory Spray early in the morning only!!!


Spread the basic fert and lightly water it in. If by hand make sure the majority goes outside the dripline of the hedge plant to promote root growth. If using a spreader it is great for turf and flower beds, etc. Let the soil settle and dry.


The Cyp. Mulch is a great mold and insect material. It is a bit costly, however, so were your plants! At two inches you should be rid of powder and black mold spores. Feed the plants six weeks later (over the mulch) and water both times for an extended period of time to allow the fert to reach the root zone (4-6") Good Luck. Let me know if it works. I am at gjgjobs@yahoo.com.
Reply:While not disagreeing with anything Jerry said, things may not be too bad. Hawthorns are pretty hardy and will probably pull through. You could try spaying with fungicide, (copper if you're organic), and feed the hedge well to "beef it up".


Are you sure that it's mildew? It could be wooly aphid, in which case you need to brush them off with a paint-brush and methylated spirit.


Hope this helps.
Reply:After reading jerry g's answer you must be panicking, don't


spray with either-


Bio systhane


bio fungus fighter


sulphur dust(vitax green or yellow sulphur)


Plus there are many more fungicides for powdery mildew.


Don't worry its easy to control if you spray with a good fungicide.


If you need anymore advice on this feel free to email me.