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Weeds in sri lankaa
 

Weeds in sri lankaa

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Matara Sri lanka

Matara Sri lanka

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    Weeds in sri lankaa Weeds in sri lankaa Presentation Transcript

      • WEEDS
    • Wathupalu BOTANICAL NAME : Mikania micrantha FAMILY : Asteraceae COMMON NAME : Wathupalu HABIT : Herb
    • Hulanthala BOTANICAL NAME : Agerotum conyzoides FAMILY : Compositae COMMON NAME : Hulanthala
    • Pethi thora
      • BOTANICAL NAME : Cassia tora FAMILY : Fabaceae COMMON NAME : Pethi Thora HABIT : Herb
    • Karal Haba
      • BOTANICAL NAME : Achyranthus aspera FAMILY : Amaranthaceae COMMON NAME : Karal Haba HABIT : Herb
    • Wal penela
      • BOTANICAL NAME : Cardiospermum halicacabum FAMILY : Sapindaceae COMMON NAME : Wal Penela HABIT : Creeper LIFE CYCLE : Annual
    • Balu naguta
      • BOTANICAL NAME : Stachytarpheta indica FAMILY : Verbenaceae COMMON NAME : Balu Naguta HABIT : Herb
    • Apala
      • BOTANICAL NAME : Urena lobata FAMILY : Malvaceae COMMON NAME : Apala HABIT : Herb
      • BOTANICAL NAME : Alternanthera sessilis FAMILY : Amaranthaceae COMMON NAME : Mukunuwenna HABIT : Herb
      • BOTANICAL NAME : Celosia asiatica FAMILY : Amaranthaceae COMMON NAME : Walraja Pohottu HABIT : Herb LIFE CYCLE : Annual
      • BOTANICAL NAME : Lantana camara FAMILY : Verbinaceae COMMON NAME : Gandapana HABIT : Herb LIFE CYCLE : Perennial
      • BOTANICAL NAME : Scoparia dulcis FAMILY : Scrophulariaceae COMMON NAME : Wal Koththamalli HABIT : Herb LIFE CYCLE : Annual
      • BOTANICAL NAME : Sida occuta FAMILY : Heen Babila COMMON NAME : Malvaceae
      • BOTANICAL NAME : Clemoe viscosa FAMILY : Capparidaceae COMMON NAME : Wal Aba (Kurunagala) Walwela (Kaluthara) HABIT : Herb LIFE CYCLE : Annual
    • Clemoe spinosa
    •  
      • BOTANICAL NAME : Tridax procumbens FAMILY : Asteraceae COMMON NAME : Kurunegala Desi HABIT : Herb LIFE CYCLE : Annual Plant
      • BOTANICAL NAME : Centella asiatica COMMON NAME : Gotukola LIFE CYCLE : Annual Plant
      • BOTANICAL NAME : Vernonia ceneria FAMILY : Asteraceae COMMON NAME : Monerekudumbiya HABIT : Herb LIFE CYCLE : Annual
      • Wal Rubber
      • BOTANICAL NAME : Euphorbia heterophylla FAMILY : Euphorbiaceae COMMON NAME : Wal Rubber HABIT : Herb
    • Sudupitawakka
    • redroot pigweed
      • Showing newest posts with label Amaranthaceae . Show older posts
      • Showing newest posts with label Amaranthaceae . Show older posts
      • Friday, December 14, 2007
      • Kurathampala
      • BOTANICAL NAME : Amaranthus viridis FAMILY : Amaranthaceae COMMON NAME : Kurathampala HABIT : Herb LIFE CYCLE : Pale green MORPHOLOGICAL CHARACTERS : Flowers are Pale green. Branched errect Herb. Flowering throughout the year. Top root system. AGRICULTURE IMPORTANCE : valuable medicine. Nutritious food contain iron. A harmless weed. PROPAGATION METHOD : By seeds METHOD OF CONTROL : By Hand weeding or herbicides.
      • BOTANICAL NAME : Desmodium triflorum FAMILY : Fabaceae COMMON NAME : Heen Undupiyaliya HABIT : Creepy Herb MORPHOLOGICAL CHARACTERS : Flowers are bright purple. Sub arial stem & runners run and spread all over the land. This herb creeping along the nodes. Leaves are like conic trilateral. Side is being consisted of a leaf is attached to the stalk. AGRICULTURE IMPORTANCE : Compete with crops for essential requirements. Valuable Medicine. Animal Feed. Gives Nitrogen to soil. PROPAGATION METHOD : By seeds or runners. METHOD OF CONTROL : By mammoting.
      • BOTANICAL NAME : Euphorbia hiria FAMILY : Euphorbiaceae COMMON NAME : Kapumkeeriya HABIT : Herb LIFE CYCLE : An annual plant. MORPHOLOGICAL CHARACTERS : Flowers are White. Branched up words from the group level. Reddish or purple edge. When the plant is broken milky juice comes out. AGRICULTURE IMPORTANCE : Compete with crops for essential requirements. PROPAGATION METHOD : By seeds METHOD OF CONTROL : By mammoting or harrowing.
      • BOTANICAL NAME : Mimosa pudica FAMILY : Fabaceae COMMON NAME : Nidikumba HABIT : Herb LIFE CYCLE : Perennial
      • MORPHOLOGICAL CHARACTERS :
      • Occationaly climbs up by nodules stem is Brownish in colour. Covered with hairs. Prickless leaves. It has more thorns.
      • AGRICULTURE IMPORTANCE :
      • Compete with crops for essential requirements. Can be seen in all parts of the country.
      • PROPAGATION METHOD : By seeds METHOD OF CONTROL : By ploughing & harrowing.
    • 693 × 457 - Amaranthaceae: Gomphrena globosa
      • BOTANICAL NAME : Leucas zelanicus FAMILY : Labiatae COMMON NAME : Gata Thumba HABIT : Herb MORPHOLOGICAL CHARACTERS : Flowers are White. Flowers are lingks in shape. Leave & Stems having small hairs. Leafs are long and thin. Plant has a top root system. Contain small fruits. AGRICULTURE IMPORTANCE : Compete with crops for water, Nutrient & Space. It has rapped growth rate. PROPAGATION METHOD : By seeds METHOD OF CONTROL : By manual weeding or uprooting.
    • Kadupahara
      • BOTANICAL NAME : Emilla sonchifolia FAMILY : Asteraceae COMMON NAME : Kadu Pahara HABIT : Herb LIFE CYCLE : An annual plant. MORPHOLOGICAL CHARACTERS : Flowers are pink. Contain lot of branches. Smooth leaves. 1.5 inch long & hairly stem. AGRICULTURE IMPORTANCE : Compete with crops like Rubber, Coconut for requirements. Not very harmful. PROPAGATION METHOD : By seeds or stolons. METHOD OF CONTROL : By plaughing, hand weeding or mammoting.
      • BOTANICAL NAME : Commelina beghalensis FAMILY : Commelinaceae COMMON NAME : Maha Girapala HABIT : Runners LIFE CYCLE : An annual or perennial plant. MORPHOLOGICAL CHARACTERS : Flowers are Blue. Flowers can be seen in the season. Leaves are wide. Plant has wide root system. Contain small fruits. AGRICULTURE IMPORTANCE : Compete with crops for essential requirements. They can prevent soil erosion because spread allover the ground covers it very well. PROPAGATION METHOD : By seeds or stolons. METHOD OF CONTROL : By manual weeding, uprooting, mammoting & using herbicides .
    • Wel karabu
      • Ludwigia perenis L
    • Wel karabu-Ludwigia octovalvis
      • Onagraceae
    • Monochoria vaginalis—Diya habarala
    • eichhornia crassipes
    • limnocharis flava
    • Maha girapala http://butterflies.heuristron.net/pictures/mainPage/plants/host/DSC09292.JPG
    • Heen girapala
    • sphaeranthus indicus L. sphaeranthus indicus L.
    • Wel siyabala
    • Wel anoda
    • Eclipta alba
    • Salvineae
    • Common purslane( Genda pala)
    • marsilea quadrifolia
    • Common purslane( Genda pala)
    • Tobacco
    • Thunbergia grandiflora
    • Thunbergia alata
    • Thunbergia erecta