Oak Tree Caterpillars
Be on the look-out for oak tree caterpillars in your oak trees. They cluster together in large groups feeding on the leaves of your trees or you may notice poop under your tree (on your patio or walk.) They can be killed with Thuricide sprayed onto the leaves or with Fertilome Borer, Bagworm, Tent Caterpillar Spray containing Spinosad. If your trees are too large to spray or you just don’t want to, they will not kill your trees. The tree will leaf back out in the spring. I have had customers say that early in the mornings they could hear them chewing the hard oak leaves. Crunch, Crunch, Crunch!
Pansies love the cool days of fall and winter. Plant them in full sun. Use Hi-Yield Blood Meal at the time of planting for larger and more profuse blooms. Once they become established use Maestro Rose Glo to keep them blooming throughout the season. You can also plant their dwarf counterpart violas. They have smaller leaves and blooms, but tolerate heat and moisture better.
Powdery Mildew on Mesquite Trees
With the cooler temperatures, shorter days and heavy rains in the past few weeks, powdery mildew fungus has attacked mesquite trees. Since the trees are getting ready to drop their leaves for the winter, it is not necessary to spray them. They will leaf out and be fine next Spring.
Rust on Plumeria
Plumeria are suffering from rust fungus caused by the same weather conditions. The undersides of the leaves have yellow- orange or reddish brown pustules. Since you should be withholding water from the plumeria so they can go dormant for the winter, be sure to gather up the leaves as they drop and discard in the trash. It is not necessary to spray unless the condition re-occurs in the spring.