Mcclain County OSU Extension

09/02/2025

GARDEN TIPS FOR SEPTEMBER!

Landscape:

•Watch for fall specials at garden centers and nurseries since fall is a great time for planting many ornamentals.
•Choose spring flowering bulbs as soon as available.
•Plant cool season annuals like pansies, ornamental cabbage or kale, snapdragons and dusty miller when temperatures begin to cool.
•Watch for and control any late infestations of tree webworms.
•Twig girdler insects should be controlled if large numbers of small branches of elms, pecans, or persimmons are uniformly girdled from the tree and fall to the ground.
•Begin to reduce the amount of light on outside tropical houseplants by placing them under shade trees before bringing them indoors for the winter.

Vegetables:

•You have all of September to plant cool season vegetables like spinach, leaf lettuce, mustard and radishes, and until the middle of September to plant rutabagas, Swiss chard, garlic and turnips.

Lawn:

•Last nitrogen fertilizer application of the year on warm-season grasses should be applied no later than September 15th. (HLA-6420)
•Winter broadleaf w**ds like dandelion will begin to emerge in late September, which is also the best time to control them with a 2, 4-D type herbicide.
•If pre-emergent control of winter-annual w**ds (henbit, chickw**d, annual bluegrass, etc.) is desired in lawns, the application should be completed by the 2nd week of September. (HLA-6421) Note: Do not treat areas that will be seeded in the fall.
•Continue bermudagrass spray program with glyphosate products for areas being converted over to tall fescue this fall. (HLA-6421)
•Plan to seed bluegrass, fescue, or ryegrass as needed in shady areas in mid- to late-September. Fall is the best time to establish cool-season lawns (HLA-6419).
•White grub damage can become visible this month. Apply appropriate soil insecticide if white grubs are a problem (EPP-7306). Water products into soil.

09/02/2025

Have you heard? A McClain County Election is scheduled for next Tuesday. You will be voting to continue a current county tax. This is not a new or additional tax. This has been in place for almost 20 years.
The McClain County ½ cent sales tax provides dedicated funding to the OSU Extension Office, with 7% of revenue supporting extension and 4-H services. This funding enables a variety of research-based programs that benefit the community, including:
• Agriculture & Natural Resources: Support for farmers and ranchers.
• Family & Consumer Sciences: Education on budgeting, nutrition, and wellness.
• 4-H Youth Development: Leadership, STEM, and life skills for youth.
• School Enrichment: Curriculum-based programs in STEM, agriculture, and health for local schools.
• Community Development: Resources for informed planning and growth.
These programs are designed to solve local problems, enhance quality of life, and build stronger communities using the resources and expertise of OSU.

08/06/2025

📣 Attention McClain County Residents!

You're invited to the McClain County 4-H Open House — a fun and FREE event to learn all about the incredible opportunities 4-H offers youth ages 5 through high school graduation! 🌟🍀

📅 Date: August 18th
🕕 Time: 6:00–8:00 PM
📍 Location: McClain County OSU Extension Office

Come explore hands-on activities, meet 4-H members and leaders, and see how 4-H builds skills in leadership, citizenship, STEM, cooking, livestock, and so much more!

🎉 Families welcome — fun guaranteed!

📞 For more info, call us at (405) 527-2174

08/04/2025

GARDEN TIPS FOR AUGUST!

Vegetables

•August is a good month to start your fall vegetable garden. Bush beans, cucumbers, and summer squash can be replanted for another crop. Beets, broccoli, carrots, potatoes, lettuce, and other cool season crops can also be planted at this time. (HLA-6009).
•Soak vegetable seeds 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 fall garden.

Fruit and Nut

•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. (EPP-7319)

Flowers

•Towards the end of the month, divide and replant spring-blooming perennials like iris, peonies, and daylilies if needed.

General

•Water compost during extremely dry periods so that it remains active. Turn the 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, scales, and other insects on plant material in the garden and landscape and treat as needed. (EPP-7306)
•Water all plants thoroughly unless rainfall has been adequate. It is better to water more in depth, less often and early in the morning.

Trees and Shrubs

•Discontinue deadheading roses by mid-August to help initiate winter hardiness.
•Watch for 2nd generation of fall webworm in late August/early September. Remove webs that enclose branches and destroy, or spray with good pe*******on with an appropriate insecticide.

Lawn and Turf

•Winter annual w**ds like Poa annua, better known as annual bluegrass, and chickw**d and henbit can be prevented with a preemergence herbicide application in late August. Water in the product after application. (HLA-6420)
•Areas of turf with large brown spots should be checked for high numbers of grubs. Mid-to-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 products into soil. (EPP-7306)
•Tall fescue should be mowed at 3 inches during the hot summer and up to 3 ½ inches if it grows under heavier shade. (HLA-6420)
•For areas being converted to tall fescue this fall, begin spraying out bermudagrass in early August with a product labeled for control of broadleaf and grassy w**ds but does not have a preemergent ingredient or one that has long residual activity. (HLA-6419 & HLA-6421)
•Irrigated warm-season lawns can be fertilized once again; apply 0.5 lb N/1,000 sq ft in early to mid August.
•Brown patch of cool-season grasses can be a problem. (HLA-6420)

07/18/2025

Remember to sign up by July 28th!

Join us on August 1 at the McClain County Farm-Home Building as we connect veterans with the tools, resources, and support they need to succeed in agriculture and business. Whether you're starting a farm or launching a small business, we're here to guide and empower those who have served to thrive in their next mission. RSVP to (405) 527-2174

07/14/2025

GARDEN TIPS FOR JULY!

Vegetable Garden

•Make fall vegetable garden plantings in late July. Fact Sheet HLA-6009 gives planting recommendations.

Lawn

•Brown patch disease of cool-season grasses can be a problem. (HLA-6420)
•Meet water requirements of turfgrasses. (HLA-6420)
•Fertilization of warm-season grasses can continue if water is present for growth. (HLA-6420)
•Vegetative establishment of warm-season grasses should be completed by the end of July to ensure the least risk of winter kill. (HLA-6419)
•Mowing heights for cool-season turf grasses should be at 3” during hot, dry summer months. Gradually raise mowing height of bermudagrass lawns from 1 ½ to 2”.
•Sharpen or replace mower blades as needed. Shredded leaf blades are an invitation to disease and allow more stress on the grass.

Tree and Shrub

•Control bermudagrass around trees and shrubs with products containing sethoxydim, fusilade, or glyphosate herbicides. Follow directions closely to avoid harming desirable plants.

Fruits

•Continue insect combat and control in the orchard, garden, and landscape. (EPP-7306, EPP-7313, EPP-7319)
•Check pesticide labels for “stop” spraying recommendations prior to harvest.
•Harvest fruit from the orchard early in the morning and refrigerate as soon as possible.

Flowers

•Divide and replant crowded Hybrid iris (Bearded Iris) after flowering until August.

General Landscape

•Water plants deeply and early in the morning. Most plants need approximately 1 to 2 ½ inches of water per week.
•Providing birdbaths, shelter and food will help turn your landscape into a backyard wildlife habitat.
•Insect identification is important, so you don’t get rid of the “Good Guys.” (EPP-7307)
•The hotter and drier it gets, the larger the spider mite populations!
•Expect some leaf fall, a normal reaction to drought. Water young plantings well.

07/14/2025

This article by Brian Pugh (new OSU State Forage Specialist) just came across my desk today in perfect timing as yesterday I saw significant army worm feeding on the crabgrass in my lawn, and not t…

07/01/2025

Join us on August 1 at the McClain County Farm-Home Building as we connect veterans with the tools, resources, and support they need to succeed in agriculture and business. Whether you're starting a farm or launching a small business, we're here to guide and empower those who have served to thrive in their next mission. RSVP to (405) 527-2174

06/06/2025

GARDEN TIPS FOR JUNE!

General Landscape

•Find someone to water plants in the house and garden while on vacation. Harvesting vegetables and mowing the lawn are a must and imply that someone is home.
•Mulch ornamentals, vegetables, and annuals to reduce soil crusting, and to regulate temperatures and moisture during hot summer months. Mulching will reduce about 70 percent of the summer yard maintenance.
•Remain alert for insect damage. Add spider mite to the list. The foliage of most plants becomes pale and speckled; juniper foliage turns a pale yellowish color. Shake a branch over white paper and watch for tiny specks that crawl. Watch for 1st generation fall webworm. (EPP-7306)
•Continue to water the landscape deeply as needed. Apply at least one inch of water each time.

Turfgrass

•Fertilize warm season grasses at 0.5 to 1 lb. N per 1,000 square feet. Do not fertilize fescue and other cool season grasses during the summer.
•Dollar spot disease of lawns can first become visible in mid-May. Make certain fertilizer applications have been adequate before applying a fungicide. (EPP-7658)
•Seeding of warm-season grasses should be completed by the end of June (through July for improved varieties such as Monaco, Yukon, and Riviera to reduce winterkill losses. (HLA-6419)
•Brown patch disease of cool-season grasses can be a problem, avoid over watering these grasses. (HLA-6420)
•White grubs will soon be emerging as adult June Beetles. Watch for high populations that can indicate potential damage from later life cycle stages as grubs in the summer. Apply preventative white grub treatments from late April to early June.
•Post-emergent control of crabgrass and summer annual grasses is best performed on young plants. (HLA-6420)
•Conduct the simple irrigation audit in your home lawn. This simple procedure may save you money, keep plants healthier and help conserve Oklahoma water resources. (HLA-6610)
•Aerification of warm-season grasses like Bermudagrass should be done in summer months if needed to control compaction.

Fruit and Nut

•Renovate overgrown strawberry beds after the last harvest. Start by setting your lawnmower to its highest setting and mow off the foliage. Next thin crowns 12-24 inches apart. Apply recommended fertilizer, preemergence herbicide if needed and keep watered. (HLA-6214)

Trees and Shrubs

•Vigorous, unwanted limbs should be removed or shortened on new trees. Watch for forks in the main trunk and remove the least desirable trunk as soon as it is noticed. (HLA-6415)
•Pine needle disease treatments are needed again in mid-June. (EPP-7618)
•Remove tree wraps during the summer to avoid potential disease and insect buildup.
•Softwood cuttings from new growth of many shrubs will root if propagated in a moist shady spot.
•Protect trees from lawnmowers and w**d eaters by mulching or using protective aerated covers.

Flowers

•Pinch back leggy annuals to encourage new growth. Fertilize and water appropriately.
•Feed established mums and other perennials.
•When picking fresh roses or removing faded ones, cut back to a leaflet facing the outside of the bush to encourage open growth and air circulation.
•Stake tall perennials before toppling winds arise.

05/30/2025

Just a reminder: the Cedar Rodeo is coming up June 21, 2025, at 9:00 AM. RSVP to (405) 527-2174

Join us for a Cedar Rodeo on June 21, 2025 at 9:00am. Guest speakers will be John Weir and Trampas Tripp. RSVP to McClain County OSU Extension Office (405) 527-2174

05/22/2025

Reminder-Register by May 30, 2025

Pressure Canning Class June 3, 2025, 1:00 pm-4:00 pm. Lean proper techniques of pressure canning and preserving vegetables. Participants will take home a pint of pressured canned vegetables!
Class will be held at the Mcclain County Extension Office 1721 Hardcastle Blvd, Purcell OK 73080.
Space is limited, call 405-527-2174, register by May 30, 2025

05/01/2025

GARDEN TIPS FOR MAY!

Trees and Shrubs
•Prune and feed azaleas immediately after blooming.
•Insect Alert: (EPP-7306)
Bagworms on juniper and arborvitae. (Late May)
Elm leaf beetles and larvae on elms. (Late May)
Mimosa webworms on mimosa and honeylocust.
Lace bugs on sycamore, pyracantha, and azalea.
•Soak new transplants and newly planted trees unless rainfall is abundant.
•Pine needle disease treatments are needed in mid-May. (EPP-7618)

Turfgrass

•Cool-season lawns can be fertilized again. If you did not fertilize cool-season grasses in March and April, do so now.
•Warm season lawns may be fertilized again in May. (HLA-6420)
•The seeding of warm-season grasses such as bermudagrass, buffalograss, zoysiagrass and centipedegrass is best performed in mid-May through the end of June. The soil temperatures are warm enough for germination and adequate growing season is present to promote winter hardiness.
•Dollar spot disease of lawns can first become visible in mid-May. Make certain fertilizer applications have been adequate before ever applying a fungicide. (EPP-7658)
•Nutsedge plants become visible during this month. Post-emergent treatments are best applied for the first time this month (HLA-6421). Make certain warm-season grasses have completed green-up.
•The second application of pre-emergent annual grass herbicides can be applied in late-May or early June, depending upon timing of first application (HLA-6421). Check label for details.
•Vegetative establishment of warm-season grasses can continue. (HLA-6419)

Flowers

•Annual bedding plants can be set out for summer color.
•Plant summer bulbs such as cannas, dahlias, elephant ear, caladiums, and gladiolus.
•Shake a leaf over white paper to look for spider mites. If the tiny specks begin to crawl, mites are present.

Water Gardens

•Clean out the water garden and prepare for season. Divide and repot water garden plants.
•Begin feeding fish when water temperatures are over 50o F.

Fruits and Vegetables

•Plant watermelon, cantaloupe, cucumber, eggplant, okra, sweet potatoes, etc.
•Fruit spray programs should be faithfully continued during the next several weeks. (HLA 6235).
•Late May is the best time to control borers in the orchard. Check for label recommendations and controls.