This wandering phenomenon has been documented in male tarantulas in several states, including Missouri. In late summer and fall, these large arachnids often can be seen crossing roads in south Missouri. Like many hunting spiders, tarantulas are active at night, when they hunt for insects such as crickets. They appear to prefer dry, rocky glades, where they spend their days in silk-lined burrows in aban- doned rodent or reptile tunnels or in other natural cavities. Tarantulas are typically at home in areas seldom frequented by people. The tarantula's large size and shaggy appearance is fright- ening to many people, leading them to believe it has a ferocious nature. Body and legs are' uniformly dark chocolate-brown, with reddish hairs on the carapace. Female taran- tulas average approximately 50mm in length, the males about 40mm. This hairy species is Missouri's largest spider. ![]() White blades of crabgrass indicates control by the selective, systemic herbicide Tenacity.īleached blades of crabgrass produced by the application of the herbicide Tenacity."Ordinary" Tarantulas, Family Theraphosidae ![]() Large crabgrass ( Digitaria sanguinalis) in zoysia grass lawn ( Zoysia japonica) note, rooting along nodes Strategies 1 - 5 are strictly organic approaches. Next year apply a pre-emergent in early spring to prevent new seedlings. Applying a post-emergent herbicide in late summer may not be warranted as the first frost will kill it. Crabgrass is an annual grass that will be killed by frost. Read and follow label directions carefully.Ĩ. Apply a post-emergent crabgrass herbicide if a pre-emergent herbicide was not used or if it was ineffective and control is warranted in early summer. Read and follow label directions carefully.ħ. Products that combine pre-emergent herbicides and fertilizer are not recommended. Applying a pre-emergent herbicide after the crabgrass has begun to germinate will not provide good control but may inhibit seedlings at the 2-leaf stage or seeds that are slower to germinate. In mid-Missouri, this would be between mid March to mid April or about the time when forsythia first begins to bloom. Apply a pre-emergent crabgrass herbicide about two weeks before crabgrass seeds begin to germinate. Corn gluten is only about 65% effective compared to synthetic products but is an organic control.Ħ. Corn gluten will inhibit the germination of turf grass seeds and should not be used within six weeks of reseeding a lawn. In Missouri, this would be between mid March to mid April or about the time when forsythia first begins to bloom. Apply corn gluten meal herbicide about two to three weeks before crabgrass seeds begin to germinate. A thick turf in the spring will shade the lawn, retard seed germination and better compete with any germinating weed plants.ĥ. Overseed existing cool season lawns in the fall. Pull crabgrass plants before they set seed. Taller grass will shade the soil and decrease the germination rate of crabgrass seeds.ģ. Cool season grasses fertilized in the fall and mid to late spring will go into mid-summer dormancy later and will compete better with the crabgrass.Ģ. Practice good cultural techniques to keep lawns healthy and free of drought, nutritional or injury-induced stress. ![]() It grows during the heat of summer, sets seeds and is killed by the first frost.ġ. Seeds can continue to germinate throughout the summer if soil temperatures and moisture conditions are adequate. Crabgrass may be found in a wide variety of landscape settings but grows best in full sun.Ĭrabgrass is a warm season annual grass that overwinters as seeds and germinates when soil temperatures in mid spring consistently remain at 50 to 55 degrees for a number of days in a row. The seed heads have 2-6 branches with 2 rows of seeds along each branch. All three species are pale green, have a prostrate or ascending growth habit, and have flat 5-10 mm wide blades. There are three crabgrass species commonly found as weeds in lawns - hairy crabgrass ( Digitaria sanguinalis), southern crabgrass ( Digitaria ciliaris) and smooth crabgrass ( Digitaria ischaemum). It was introduced from Eurasia and is widespread throughout the United States. Large crabgrass ( Digitaria sanguinalis) in zoysia grass lawn ( Zoysia japonica)Ĭrabgrass is an annual grassy lawn weed that spreads along the ground creating a dense mat that smothers desirable grasses.
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