Sago,which is not a palm but a member of the cycad family. How do you prune these and when.?

I have a sago that is now growing new "feathers". Is it time to prune out the older leaves?

Sago,which is not a palm but a member of the cycad family. How do you prune these and when.?
that first fella had the perfect answer. thumbs up. but since i'm already on the page i thought i could toss in a few cents more about the sago palm. you're correct... it's neither fern nor palm. it is a primitive, cone-bearing relative of conifers, little changed over the past 65 million years. and if you are waiting to see it grow, you'd swear it took that long just to grow chest high. a very, very, very, very slow growing plant. my sago is but 10 feet tall, but has out lived three of it's previous owners. that's why you find them selling for $40.00 in a two gallon pot. that poor nursery dude saw his own kids growing up faster then that baby sago he was raising to sell. mine is about 85 years old %26amp; still going strong. she was a beautiful addition to our front yard. about two years ago a landscaper showed up at my door %26amp; offered me $10,000.00 for it. He wanted for some big hotel in vegas. i turned him down. he was back a few days later %26amp; his offer was $12,500.00. again, the answer was no. the following week he called with an offer of $17,500.00. That was a tempting lot of money for one, rather small plant. Might have been too tempting? We had it moved into our back yard before it got feet on some dark night %26amp; dissapeared. enjoy it. maybe your grandchildren will one day enjoy it too. my grandson can't wait for me to die. he wants to chop it down so he can build a skateboard jump! Oy!
Reply:remove the old fronds as they brown