caterpillar

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!

Pansy Time

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.

Aphids on Milkweed: If you plant tropical milkweed to help the monarch butterflies (and for the beautiful flowers) sooner or later you will get aphids. You can hose down the infested milkweed tips with a sharp stream of water, knocking most of the aphids off (away from your other plants please). But if you see a substantial number of aphids looking brown and bloated instead of just fat and sassy, you may choose to

leave them alone. The brown, bloated ones have been parasitized by a tiny braconid wasp, whose larvae will eat the insides of the aphid, metamorphose into a wasp, and hunt down scores of aphids to lay eggs on, continuing to destroy aphids with no supervision from you. -James

Too much rain on roots? My walking buddy sent me a photo of her unhappy Jatropha and wanted to know what the problem was. We believe the constant moisture over the last few months caused the roots to rot which caused the plant to drop foliage (a plant is programmed by mother nature to drop foliage if roots are suffering).

Now that the sun is out and soils are drying, we recommended she cut the plant back one half and be stingy with watering. Most likely it will flush with new spring foliage and be good to go.

-Sally

Caterpillar alert: I have had several customers bringing me Tussock Moth Caterpillar from their oak trees. The creamy white hairs on the caterpillar are long and bristle-like and spread out in tufts down the sides. Two long, sharp black pencil like hairs protrude near the front and rear and these hairs are connected to poison glands, which excrete venom on contact. Contact with the venom may result in itchy irritation. You can spray your tree with Hi Yield Thuricide Concentrate or Natural Guard Spinosad Hose-end. We also carry Spinosad in a concentrate Fertilome Borer, Bagworm, Tent Caterpillar and Leafminer Spray. Both of these products are organic and safe to use on all plants. Thuricide

reacts with the cells of the stomach lining of the target pest causing them to not be able to feed within hours of ingesting. They eventually die from starvation. Spinosad is a contact kill, but still safe and organic for all plants.

-DeAnna

My mother, Ruth Gill, was a quirky but elegant, courageous yet tender, intelligent and curious woman. And I can put that in this blog because its Mother’s Day! But back to gardening, with just a few of her quirky twists.

When I was little, we lived on Hewit Drive, at that time the “fancy” neighborhood. One year, the grubs killed a large patch of the front lawn, and instead of rushing to plant new grass, she planted and harvested a crop of blackeyed peas. In the front lawn! On Hewit Drive! That’s seeing opportunity where others would not.

I often found her in the garden, pulling weeds, and eating them! Purslane was one of her favorites, and now one of mine. I grow it in a pot for a delicious and very healthy stir fry. She always said “The best revenge against a weed is to eat it.” Once we were camped on Matagorda Island with nothing left to eat but a can of tuna fish. She went for a walk and scoured up a mess of wild onion and peppergrass, and turned a boring can of tuna fish into a gourmet seasonal tuna salad.

Another time, she brought in some Giant Pothos ivy leaves which she arranged in a vase on the table. As a few days passed, I noticed brownish green pellets under the plant and looked more closely. There was a caterpillar munching on the leaves, and I was indignant to share my table with a munching and pooping caterpillar. When I told my mother there was a caterpillar, expecting her to be dismayed and pick it off, she instead replied “Yes, isn’t she just a marvelous artist? I love to watch her work, the changing pattern she makes in the leaves, new every day.” And of course she was right, she had a way of seeing and appreciating the marvels around us that most people miss. I am so thankful to my mother for opening my eyes to the wonders of nature and gardening.

-James

If your citrus looks like it is getting munched on, make sure you look for Swallowtail caterpillars before you grab your insecticides. Giant Swallowtail butterflies lay their eggs on lemons, limes and even grapefruit trees this time of year, and the caterpillars literally look like bird poop (as their camouflage). So if you see moving bird poop on your citrus, just leave them be and they’ll be beautiful Swallowtails in no time!

-Marta

The asps are out! It’s been years since we’ve had a big asp outbreak. These stinging hump back caterpillars love oak trees, yaupons hollies, burford hollies, hawthorns, altheas, and hibiscus. I saw a fresh hatching no bigger than a pea on some hollies the other day. Take a close look at your plants and see if you find any skeletonized leaves. Spray thoroughly on the tops and bottoms of the leaves with Spinosad, or Liquid Sevin as a contact kill. Thuricide can also be used, but the caterpillar has to ingest the leaves to be killed and that takes a couple of days.

Leafcutter bees are also a problem now. These bees are generally passive and not very aggressive. However they can sting and will do so if handled or aggravated. You usually never see the bee, but you do see the damage left behind. They cut perfect semi-circles out of the leaves of soft tissued plants such as crape myrtles, hibiscus, plumbago and roses. We first noticed the damage on our kapok trees. They take the leaves and roll them into perfect tubes to block their nest openings. No treatment is necessary since the nesting period of the female is usually just a couple of weeks. The scalloping of the leaves will not kill your plants, it just leaves them unsightly to some. These bees are great pollinators, so I say, “let them do their thing”.

-DeAnna

We all hate to see our plants being eaten, but did you know that some of our favorite plants are the food source for many caterpillars. The most common example is Milkweed. It is the only food source for Monarch caterpillars. They will eat all the leaves in one day and want more. They do not kill the plant. The Milkweed will recover quickly with new leaves for the next hatching of caterpillars. Passion Vine is another common plant that gets its own caterpillar, the Gulf Fritillary and the Zebra. Again they can do lots of damage in a short period, but the plants quickly recover. Carrots, Dill and Parsley are the food source for the Black Swallowtail. Even your citrus trees get a caterpillar from the Giant Swallowtail. So just remember when planting a butterfly garden, they do lay eggs and hatch caterpillars which eat your plants, but that’s o.k. Your plants will leaf back out. Plant some plants for the nectar they need and other plants for the larvae to feed. Then kick back and admire nature at work.

-DeAnna

I have had several customers bring me Tussock Moth Caterpillars they found munching on their oak tree leaves.

The creamy white hairs on the caterpillar are long and bristle-like and spread out in tufts down the sides. Two long, sharp black pencil like hairs protrude near the front and rear and these hairs are connected to poison glands, which excrete venom on contact. Contact with the venom may result in itchy irritation.

You can spray your tree with Hi Yield Thuricide Concentrate or Natural Guard Spinosad Hose-end. Both of these products are organic and safe to use on all plants. Thuricide reacts with the cells of the stomach lining of the target pest causing them to not be able to feed within hours of ingesting. Spinosad is a contact kill, but still safe and organic for all plants.

(photo via ocala.com)

-DeAnna

Texas Sage eaten by caterpillars? Take a close look at your Texas sage and see if you find small black spiny caterpillars.

They are the larvae of the Silvery Checkerspot Butterfly.

Although they are small they have a huge appetite for sage leaves. They can devour the leaves of your plant in a matter of days. They are easily killed with Thuricide, Dipel dust or Spinosad and your plants will leaf back out in no time.