Helpful tips from Barbara Chadwick
OSU Master Gardener
Ross Seed Co. El Reno, OK.


  • Discontinue dead heading roses by mid-August to help initiate winter hardiness. 
  • Watch for second generation FALL WEB WORMS in late August/early September. Remove webs that enclose branches and destroy: OR spray with good penetration with an appropriate insecticide.


  • Grassy winter weeds like Poa Anna, better known as annual Bluegrass, can be prevented with a pre-emergence herbicide application in late August. Water in the product after application.
  • Areas of turf with large brown spots should be checked for high numbers of grubs. Mid-late August is the best time to control heavy white grub infestations in the lawn. Apply appropriate insecticide if white grubs are a problem. Water product into soil
  • Tall FESCUE should be mowed at 3 inches during the hot summer and up to 3½ inches if it grows under heavier shade.
  • Brown patch of cool season grasses can be a problem.
  • For areas being converted to TALL FESCUE this fall, begin spraying out Bermuda grass with a product containing Glyphosate in early August.
  • Irrigated warm season lawns can be fertilized once again. Apply 0.5 lb. N/PER 1000 sq. ft. in early to mid-August.


  • Towards the end of the month, divide and re-plant spring blooming perennials like Iris, peonies and day lilies if needed.


  • August is a good time to start your FALL VEGETABLE GARDEN. Bush beans, cucumbers and summer squash can be re-planted for another crop. Beets, broccoli, Carrots, Potatoes, Lettuce, and other cool-season crops can also be planted at this time.
  • Soak vegetable seed overnight prior to planting. Once planted, cover them with compost to avoid soil crusting. Mulch to keep planting bed moist and provide shade during initial establishment. Monitor and control insect pests that prevent a good start of plants in your garden.


  • Continue protective insect applications on the fruit orchard. A good spray schedule is often abandoned too early. Follow directions on last application prior to harvest.


  • Water compost during extremely dry periods so that it remains active. Turn pile to generate heat throughout for proper sterilization.
  • Always follow directions on both synthetic and natural pesticide products.
  • Watch for high populations of caterpillars, aphids, spider mites, thrips, scale, and other insects on plant material in the garden and landscape and treat as needed.
  • Water all plants thoroughly unless rainfall has been adequate. It is better to water more in depth, less often and early in the morning.
Description: Oklahoma Spiders: Pictures and Spider Identification - Green Nature


  • Have you seen this spider in your landscape?
  • It is an ARGIOPE SPIDER.
  • ALSO KNOWN AS THE ZIG-ZAG SPIDER, WRITING SPIDER, OR ORB-WEAVERS …the most common spider you will find in your landscape.
  • The ARGIOPE Genus comprises of spiders belonging to orb weaver family, known for their large size and striking appearance. This genus has about 88 species distributed evenly worldwide.
  • COLOR: Most common for Oklahoma is black and yellow.
  • THE WEB: They have a white sticky web, appearing in the form of a zig zag pattern of silk which reflects UV light. They usually make their web about one meter above the ground.
  • HABITAT: Shrubby areas, dense vegetation, and gardens. Around homes they like to build their webs in branches of trees and bushes in the garden and in the corners of doorways, porches, and decks. Orb spiders commonly build their webs near porch lights since the insects they eat are drawn to light.
  • DIET: Flying insects like flies, wasps, bees, aphids, and grasshoppers.
  • LIFE SPAN: Approximately one year.
  • DO THEY BITE? ORB-WEAVERS are very docile,
  • non-aggressive spiders that will flee at the first sign of threat. Typically, they will run or drop off the web.
  • They are not dangerous to pets and people and are quite beneficial because they will catch and eat a lot of pest-type insects and prefer sunny site with little or no wind. They would attack when provoked, but their venom is not poisonous to humans. Their bite is like a bee sting with symptoms such as pain, redness and swelling.
  • ARRIVAL? Primarily sighted during the months of August, September, and October.
  • If you have ORB SPIDERS, you are lucky!!

Our Annual Plant sale is the first weekend in April in Chickasha and the 2nd weekend in April in El Reno.

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