Pine Tip Moth
The larva of pine tip moths bore into the tip of the new candles on pines (mostly scotch and mugo pines). If you see brown tips, twist them and see if there is a hollow tunnel with a small orange larva. This usually does little harm to the tree but it may delay growth and cause a bushier appearance. There are generally three generations of the moth. They can be controlled by three applications of Hi-yield 38 Plus. First during late-April to early-May. Second from June to early-July. Third from late-July to early-August.
If applied as a preventative in the spring, Ferti-lome Tree and Shrub Systemic Drench can be used. One treatment of the drench lasts an entire year.
*Please read and follow all label instructions when applying chemicals.