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Selectivity of Pyriclor on Witchweed, Tobacco, and Other Plants
Weed Science, 1971Postemergence directed application of 0.56 kg/ha of 2,3,5-trichloro-4-pyridinol (pyriclor) gave control of witchweed (Striga lutea Lour.) equivalent to 2.24 kg/ha of (2,4-dichlorophenoxy)acetic acid (2,4-D) without injuring corn (Zea mays L.). Pyriclor applied to the soil surface or incorporated did not significantly injure tobacco (Nicotiana tabacum L.
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Divergent control of seed germination by cytokinins in weedy broomrapes and witchweeds
Plant And Cell PhysiologyAbstract Broomrapes (Phelipanche and Orobanche spp.) and witchweeds (Striga spp.) are parasitic weeds that are increasingly threatening crops worldwide. Seeds of these species rely on host-derived signals such as strigolactones (SL) to germinate.
Guillaume Brun +11 more
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Control of Witchweed, Striga hermonthica Benth., in the Sudan Gezira
Nature, 1957RECENT work1 has shown that the phanerogamic root parasite Striga hermonthica Benth. (witchweed), which causes considerable crop losses to sorghum (Sorghum vulgare Pers.) in the Sudan and elsewhere, can be controlled by spraying the young crop with hormone weed-killers of 2,4-D type two to three weeks after sowing.
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