Treesweet Products is changing its logo.

The fruit-juice maker, which recently moved its corporate headquarters to Houston from Santa Ana, is shedding its familiar logo, a cartoon of a smiling, pixie-faced citrus fruit, in an effort to acquire a more upscale marketing image. Starting last month, the new logo--a realistic picture of citrus fruit under a blue arc bearing the Treesweet name--began appearing on bottled juices sold in California. The company will start placing the new image on frozen, canned and bottled products nationwide early next year.