sounds like you might have something very tiny eating the bugs, after the sun goes down if you have this outside have ready a mix of 1 teasp kitchen soap & 1 qt water and spray outside................................use a stick to move the delicate branches and get under them..........................if this does not work...................you could make up a 5 gallon bucket of sevin.............read the label to make sure that is on the list...........and submerge the whole plant until the bubbles stop...............then take it out and let it drain..................this plants are very sensitive to sudden weather changes....so be careful it you have this outside and the nights get into the low 40's........