3g is 3.3#-5.5#/acre ....... 5 oz./1000 linear ft of row I believe equates to 5#/acre. I would stick to higher rate for Rootworm . If just going after wire worm you could use lower rates. DO NOT cut rates. A guy is putting it out there with planter about a month before the critters are out there. So why use a half rate when full rate is deminished in a month with rainfall. Half rate your just pissing it away !