Hi Sujiwan-

I can help with some...

For Scab and Cedar Apple Rust, you want Immunox. Just 2 sprays of this stuff at Pedal Fall, and 10-14 days later eliminates my biggest nemisis Cedar Apple Rust. Some have found it at the big box stores, but most have to get it online. You want Immunox (Myclobutanil), not "Immunox Plus" which has an insecticide not rated for fruit.

For Plum cucurio, you want Triazicide Once and Done Concentrate which you can find at Walmart. For me, I only have to spray it once or so and after that, I bag my fruit.
http://www.acehardware.com/product/index.jsp?productId=3909460&CAWELAID=468824812

In the case of both sprays, make sure you read the label!
I've got a Solo diaphram sprayer that many of the experts on this forum recommend. http://www.gemplers.com/product/109878/Solo-Backpack-Sprayer-3-Gallon-Standard-Diaphragm-Pump?sku=109878&ci_src=14110944&ci_sku=109878

The only time you would need a different sprayer is if you were spraying a herbicide like RoundUp or weed killer. Never put that type of stuff in your nice new sprayer.

Since know nothing about chickens, I'll let someone else answer that question.

Hope this helps,
-Glenn

Here is a link that might be useful: Immunox at Ace Hardware

If you have curculio, you'll have to protect your plums.

I also use two sprayers, one for Roundup another for fruit tree spraying. Don't want to chance any residual Roundup in the sprayer used on the trees.
Dan

I don't have much trees like you. All I have 4 Apples, 4 Bears, 4 beaches, one plums and one sweet cherry. For two years in a row we could not get even one apple or one pear. I sprayed with Bonide and Sevin but the Cuddling Moth destroyed all my Crops. You mentioned that the pear tree looks like immune (wholly Cow) nothing is Immune. I use one spray of Dormant oil. Then one spray of Sevin while flowering to protect against Brown Rot But I do it in the evening to protect the honey bees. At the petal fall I start weekly spray Surround and after every rain. It really helped me. As for sprayer I use just one sprayer for every thing but you have to clean it.
If you spray Surround you have no worry about your chickens Because Surround is harmless and even used to stabilize commercial food and is used in tooth paste.

Foolish, please read crarefully. Sevin is not a fungicide and it is foolish and illegal to spray it when plants are in bloom! It will kill bees even when dry if it lands on open flowers.

Sevin is not labeled for and is of no use in combating brown rot- it is a non-specific insecticide- meaning it kills good bugs and bad (ok, bug bit fruit does tend to rot).

I know you didn't just accidentally type a wrong word because you made the same mistake on a post a week or so ago and I corrected you more gracefully then but you didn't see it. I do hope you read this.

I tried to e-mail you but you can't be reached that way through this forum.

Sujiwan,

If you're still here, you do not need different sprayers for different fungicides. In fact, it's common to tank mix both fungicides and insecticides and apply at the same time.

As Glenn and Marcus pointed out, it is advisable to have a different sprayer for herbicides.

Glenn addressed your pome fruits, but for your plums you'll probably need a fungicide to protect against brown rot. Captan or Montery Fungi Fighter should protect you from brown rot. Captan can also be used on apples, whereas Fungi Fighter is not labeled for pome fruits.

In terms of your chickens, generally speaking the pesticides we are discussing are not inordinately lethal to birds. I've sprayed trees that had Robins nests in them, and it didn't seem to affect the birds at all. Hman has mentioned Imidan will cause birds to vacate nests, but I doubt you'll be using that.

If you want more information on the avian toxicology of a specific compound, Google the active ingredient of a pesticide with the term "LD 50".

For instance Triazicide has gamma cyhalothrin as its active ingredient. Googling shows an LD 50 value of greater than 5000 for quail. Anything over 1000 shouldn't cause problems to your chickens, even if you sprayed them directly with the mix.