Wild Cucumber (Echinocystis Lobata)

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Featured Pest: Wild Cucumber (Echinocystis lobata) A native annual reproducing from seeds it is pest mostly of ditches, Scouting: Wild cucumber can easily be distinguished by it vine-like low moist areas, shelterbelts, yard sites, stream banks and fence lines. twining habit, bright green leaves, three-branched tendrils and male flowers in long clusters. Figure 3. Seedling with broad fleshy cotyledons with seed pod Figure 1. Flowering wild cucumber Figure 4. Twining vine with 5-lobed leaves and tendrils Weed Act Status: Wild cucumber is a noxious weed in Manitoba. Herbicide Resistance: Herbicide resistance is not known in wild cucumber. Herbicide Control Options: The location of wild cucumber in wetlands and shelterbelts or tree lines can make control difficult. It can form Figure 2. Seeds and mature fruit pods large patches and smother desirable plants. Very few labelled Biology: Seedling cotyledons are large fleshy and oval in shape. Leaves herbicide control options exist in Canada, pre-emergents may be most are bright green, usually 5-lobed and most leaves have a long effective at preventing seeds from germinating. branching tendril at the same node as the leaf. Separate male and female flowers emerge at the same node. The female flowers are Similar Weeds: Very few weeds can be mistaken for wild cucumber. smaller on short stalks. The male flowers are in long clusters. The seed Goldencreeper (Thladiantha dubia) resembles wild cucumber pods are distinctive with 2.5 to 5.0 cm in size, producing 4 large brown seedlings but goldencreeper is a perennial reproducing from tubers to black mottled seeds which emerge from openings at the end of the and has hairy leaves. Bur-cucumber (Sicyos angulatus) is an annual seed pod. with 3 to 5-shallow lobed leaves. Issue Date: June 10, 2015 .

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Phylogenetic Relationships in the Order Cucurbitales and a New Classification of the Gourd Family (Cucurbitaceae)
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