A handbbok on Weed Control in Rice.pdf
A handbbok on Weed Control in Rice.pdf
A handbbok on Weed Control in Rice.pdf
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Lowland rice weeds / ONAGRACEAE (even<strong>in</strong>g-primrose family)<br />
<strong>Weed</strong> name: Ludwigia octovalvis<br />
(Jacq.) Raven<br />
Syn<strong>on</strong>ym: Jussiaea suffruticosa L.<br />
Local names:<br />
Country Comm<strong>on</strong> name<br />
Brazil cruz-de-malta (Portuguese)<br />
Malaysia j<strong>in</strong>aleh<br />
Philipp<strong>in</strong>es balakbak, malapako<br />
(Tagalog)<br />
Thailand phak phaeng phuai<br />
USA l<strong>on</strong>g fruited primrosewillow<br />
Life cycle: An annual aquatic broadleaf<br />
weed that can grow as tall as<br />
100 cm. Propagates by seeds, some<br />
of which will germ<strong>in</strong>ate immediately <strong>in</strong><br />
wet or flooded soils.<br />
Habitat: Adapted to wet and aquatic<br />
c<strong>on</strong>diti<strong>on</strong>s.<br />
<strong>Weed</strong>y nature: Very competitive<br />
with rice.<br />
Agricultural c<strong>on</strong>cern: Can reduce<br />
rice yields 50-80%.<br />
Seedl<strong>in</strong>g<br />
Seed, magnified<br />
Mature plant<br />
Flower<br />
<strong>Weed</strong>s worldwide 15
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