Feral cats always digging at themselves

I was wondering what to do for my poor feral kitties? I know they probably have fleas and tapeworm but I'm not able to touch them so I don't know what to do for them. I feel so bad for them because they itch and scratch constantly. They usually lose their hair on the back by the tail from digging so much. Last year Snickers lost her hair on her back, stomach and back legs but she is not that bad this year. Last year I tried giving them tapeworm pills but even though I crushed them up and put in wet food they would not eat it. I went through 3 bottles and not one cat would take the pill in food. I wasted $60.00 trying to get them to take the pill.

I love these guys and just wish I could help them. I have been caring for them for 4 and 5 years.

Names are:

Mama cat is 5 years old

Snickers is mama cats daughter and she is 4 years old

Maddie is mama cats daughter and she is 4 years old

Tiger (she is a girl but my son wanted to call her Tiger) she is also mama cats daughter and she is 4 years old

Christoper comes and eats from a colony from down the road, don't know how old he is.

I had three others but two got sick Sassy and Baby boy, they had to be euthanized and then Tess just disappeared last summer. Sassy was only 8 months old when we lost her and Baby boy was 4 years old when we lost him.

Just wanted to give a little background on my little family. Thanks

Can you come near so you can use spot on preparates on them?

Ie, you dont need touch them, just drop a drop on their neck / shoulderblades.

Its one idea.

Otherwise to find some preparate to use in food, AND without bad taste...

Another option may be Diacetomeus Earth  (often called DE). Make sure it is labelled

Food grade, or human grade.  Such a one you can both sprinkle on them, and even give them in food.

So both the external and the internal parasites will get hurt.

It kills most parasites, but not dangerous to mammals.

Good luck!

There is also a product called Capstar which works similarly to DE.  It's a powder you put on the wet food.  Mix it in well and they should eat it without blinking.

As Stephan said, a spot-on, like Revolution, will work, too, but only if you can get close enough to them to apply it. 

If they are losing their fur, they may be allergic to fleas.  If that's the case, they do need treatment of some sort.