Horsenettle - posted in Alfalfa/Hay: Just got in from checking 2 hay fields. Hay and silage containing the mature plants have been associated with poisoning and deaths. How to Identify Horsenettle. Horsenettle seeds can be transported in hay, harvested grass seed, sod, mowing equipment, or dispersed by water, and wildlife. “one farm had noticed that horsenettle makes his cows sick, so he tries to keep them out of it whereas another down the road says her livestock won’t eat it. Weed Control in Pastures • Difficult challenge • Weeds often grow on rough terrain/hillsides • Livestock tracking opens the soil allowing weeds to germinate ... common cause of hay fever. I have heard grazon p and d is good to control horsenettle but what about milkweed? All parts of the plant, except the mature fruit, are poisonous to livestock even when this weed is consumed in dry hay. The most complete control of horsenettle is to mow at 30-day intervals and treat the final regrowth in fall with a systemic herbicide. It produces many seeds, which are often spread through berries contained in hay, so be sure to prevent it from maturing. Prowl H 2 O is not labeled for use after green up. One of its primary ways of introduction to pastures and grazing fields is through feeding hay that carries dried plant material from horsenettle, where it is then excreted in pastures and fields and germinates. Weedmaster and Outlaw will severely injure or kill clovers or alfalfa. ' Maybe more dialogue with the farmers sometime?” Target roots and rhizomes by herbicide applications timed at early-flowering in July or August. It reproduces by seed and has an extensive root system. GrazonNext is particularly effective on thistles, horsenettle, and smooth bedstraw. Buttercups: The buttercup species (Ranunculus species) includes several annual and perennial plants which are commonly found in overgrazed horse pastures. What is the recommended timing? Application timing will typically be from late May to early June. Horsenettle is a perennial broadleaf weed in the nightshade family and related to tomato and potato. Prowl H 2 O is NOT labeled for use on tall fescue or other cool season hay and pasture grasses. However, it only injures ryegrass and is poor on horsenettle. Buttercup causes oral irritation when chewed, and horses rarely consume the plant because it is unpalatable. Horsenettle is a perennial, rhizomatous, broadleaf plant (Fig.1) that belongs to the nightshade family, Solanaceae. Seed remain viable for up to 10 years in soil. Each entry includes a picture, a description that includes symptoms livestock may experience from eating the plant, and some control measures. In hay or pasture, milkweed can be spot-treated with glyphosate applied with a wipe-on applicator while the milkweed is taller than the crop, or spot-treated with a hand-sprayer. The GrazonNext label has restrictions concerning the use and management of plant residues (hay, straw, mulch, compost) and manure that may contain aminopyralid residues. Figure 1: A Carolina horsenettle plant. GrazonNext is particularly effective on thistles, horsenettle, and smooth bedstraw. In the former case, it sounds like horsenettle isn’t a good candidate for grazing, or do you have suggestions? Carolina horsenettle is declared noxious in Alaska, Arizona (prohibited weed), Arkansas, California (“B”-list), Hawaii, Iowa, and Nevada (USDA-NRCS, 2019).Silverleaf nightshade and Carolina horsenettle reproduce by seed, rhizomes, and root fragments. However, consumption of this weed rarely occurs due to the prickly stems and leaves. Horsenettle is an erect perennial weed. I was lucky enough to spend a few days in Louisiana the end of September where I talked about how to teach livestock to eat weeds, and I got to teach folks to eat cricket brownies and fried larvae.It was a GREAT trip thanks to my host, Alan DeRamus. The alternate leaves are up to 6" long and 3" across, and have short petioles. Cimmaron is widely used. This field has had no horsenettle or cactus in it for several years. The toxic principles in horsenettle are glycoalkaloids (alkaloids + sugars). Horsenettle is found throughout the southeastern, eastern, and north-central United States. Page 1 of 2 - Horsenettle, milkweed control - posted in Weed and Pest Management: Well I was out scouting my orchard and fescue fields I cut a few weeks ago and it appears that I have quite a bit of milkweed and horsenettle just coming up. Horsenettle will exploit declining pastures and become established. This is in a bermuda/bahia hay meadow and I didn't realize the horsenettle had gotten that bad until I cut it. HORSENETTLE . Its thorns make it a problem in pastures and hayfield. Flowers in elongated clusters (racemes) at ends of stems, white to purple, about 1 inch across with 5 united petals, forming a five-pointed star with 5 large, yellow stamens protruding. How large do I need to let them grow before I spray? horsenettle is poisonous to livestock and can be a problem in silage or hay crops. But perhaps the highlight was my visit with Don and Betty Ashford who used my training process to teach their cows to eat weeds. It is a highly difficult-to-control weed in grass pastures, meadows, and hay fields. Cimmaron is widely used. Spray in late autumn or early spring when the plant is … … Horsenettle can reproduce from seeds that can persist in dry berries found in hay and from rhizomes or adventitious shoots that emerge from the creeping roots. When applied at lower rates, it will not harm white clover. The stems have scattered white or yellow spines. Featuring prickly stems that can grow up to 3 feet high, horsenettle (Solanum carolinense) is a member of the nightshade family that is distinguished by clusters of star-shaped flowers with five white or violet petals surrounding a yellow center.This perennial herbaceous plant has alternating oblong leaves that are hairy and commonly exceed 4 inches in length. Horsenettle in pasture and hayfields I have seen a marked increase in the number of pastures and hay fields infested with Horsenettle this season. Control of large plants will be poor. However, it only injures ryegrass and is poor on horsenettle. The GrazonNext label has restrictions concerning the use and management of plant residues (hay, straw, mulch, compost) and manure that may contain aminopyralid residues. Do not cut for hay within 37 days after treatment. Add 0.25% nonionic surfactant. Mugwort (Artemisia vulgaris) is increasingly prevalent in row and ornamental crops. In the case of horsenet- tle, feeding infested hay is the one of the primary ways the weed is introduced into a field. The leaves are alternate on the stems, and both leaves and stems contain spines. Weedmaster provides excellent control of broadleaf weeds and is the preferred product in hay operations. Horsenettle is a thorny perennial that sprouts from spreading roots or rhizomes (underground stems). Like most herbaceous perennials, a well-timed, effective, systemic herbicide in combination cultural and mechanical controls can reduce the incidence of horsenettle. • Horse Nettle • An erect perennial that spreads by spreading rhizomes and seeds. Prevention is the best defense against horsenettle. • Reproduces from seed. No. The toxic component is in the fresh leaves and flowers, but they lose toxicity when dried for hay. For summer annual weed control, apply in late winter when perennial warm-season grasses are still dormant. Carolina Horsenettle Climbing Nightshade Black Locust Sundial Lupine Ohio Buckeye Horsetail This Document Use this publication to help identify these plants and serve as a basic reference. Horse Nettle Solanum carolinense Nightshade family (Solanaceae) Description: This herbaceous perennial plant is up to 3' tall, branching occasionally. Each of its mostly oval leaves has several teeth or shallow lobes on both sides. Carolina horse nettle has large spines on the stems and leaves. Other names: bull nettle/Carolina nettle/ sand brier . In the case of horsenet- tle, feeding infested hay is the one of the primary ways the weed is introduced into a field. It produces many seeds, which are often spread through berries contained in hay, so be sure to prevent it from maturing. It has dark green leaves that are sharply lobed with a pointed tip. Do QRW JUD]H PHDW DQLPDOV LQ WUHDWHG DUHDV ZLWKLQ GD\V RI VODXJKWHU ,I WKLVWOHV are present, apply while they are in the rosette stage of growth. Target roots and rhizomes by herbicide applications timed at early-flowering in July or August. Weeds in forages compete for nutrients, light moisture and space. ... Silverleaf nightshade and Carolina horsenettle have the potential to invade natural areas, pastures, and cropland. Carolina Horsenettle (Solanum carolinense) A warm season perennial, Carolina horse nettle can grow to 2 feet tall. Horse nettle is a native perennial with spiny stems and leaves; the fruits are toxic and look like tiny yellow tomatoes. A 30ac bahia field that has several acre patches of horsenettle and cactus starting in it. Therefore this persistent plant can take over entire fields if not managed. A single plant can produce up to 5,000 seeds. Panoramic at 4 to 6 fl oz/A does a fair job of foxtail control if it is in the seed-ling stage. 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