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PCMG – FAQ’s – Diseases, Pests & Weeds

What is Causing Brown Spots On My Coleus?

PCMG - FAQ's - What is Causing Brown Spots On My Coleus?What is causing brown spots on my coleus? Coleuses are wonderful annuals for Parker County with their colorful foliage, tolerance of summer heat and ease of propagation. They like shade from the afternoon Texas...

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What Do I Do About Webworms?

PCMG - FAQ's - What Do I Do About Webworms?Many north Texas homeowners are noticing unsightly silken webs appearing on a variety of trees this summer. One of the most common foliage feeding caterpillars in north Texas is the fall webworm, Hyphantria cunea. Despite its...

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What Can I Spray on Dormant Plants To Rid Them of Insects?

PCMG - FAQ's - What Can I Spray on Dormant Plants To Rid Them of Insects?Is there something that can be sprayed on plants while they are dormant to rid them of insects before they do damage? You can rid your defenseless trees and shrubs of inconspicuous killers by...

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What Are Those Worms Hanging From My Trees?

PCMG - FAQ's - What Are Those Worms Hanging From My Trees?Cankerworms are a major defoliator of broad leaf trees in east and central Texas. Such outbreaks of cankerworms are not predictable and reach high levels with little warning. Cankerworms pose a threat to broad...

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Using Horticulture/Dormant Oil in the Landscape

PCMG - FAQ's - Using Horticulture/Dormant Oil in the LandscapeJanuary-February is a good time to control scale insects on evergreen shrubs and trees such as camellias, hollies, bay laurel, myrtle, euonymus, citrus, photinias and boxwood through use of a horticultural...

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Ten Common Weeds

PCMG - FAQ's -  Ten Common Weeds1. Yellow Woodsorrel  Oxalis stricta 2. Carolina Geranium Geranium carolinianum 3. Annual Sow-thistle Sonchus oleraceus 4. Dollarweed Hydrocotyle sp. 5. Henbit  Lamium amplexicaule 6. Bristly Mallow  Modiola caroliniana 7....

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Scale on Wintercreeper euonymus

PCMG - FAQ's - Scale on Wintercreeper eunymus Scale can be a problem on purple wintercreeper euonymus although not as bad as on euonymus shrubs. If you notice white or manila spots on the leaves of this groundcover, check the underside of the leaves and if you see...

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Leaf-Rollers on Cannas and Vinca Major

PCMG - FAQ's - Leaf-Rollers on Cannas and Vinca MajorWhat do you do about leaf-rollers on Cannas, Vinca Minor and Vinca Major?   Systemic insecticides are a special group of insecticides that are taken up into the plant through its leaves or through its roots. Unlike...

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Is Black Mold on a Bag of Peat Moss Dangerous to Breathe?

Parker Co Master Gardeners - FAQ's  - Is Black Mold on a Bag of Peat Moss Dangerous to Breathe?PCMG - FAQ's - Is Black Mold on a Bag of Peat Moss Dangerous to Breathe? Is black mold on a bag of peat moss dangerous to breathe? It is never a good thing to breathe black...

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