Clove (Syzygium aromaticum)

Leaf spot & Bud Shedding.(Colletotrichum gloeosporioides, C. crassipes )

Symptoms

  • Necrotic spots of variable size and shapes are noticed on the leaves.
  • Severely affected leaves wither, droop and dry up.
  • Twigs are infected as the symptoms extend from the leaves through petioles.
  • The affected branches stand without leaves or only with young leaves at tips.
  • Flower buds are attacked by spreading infection from the twigs.
  • Shedding of flower buds occurs during periods of heavy and continuous rainfall

Management

  • Pruning should be done during dry weather.
  • Destruction of weed clerodendron from clove garden
  • Spraying Bordeaux mixture 1% at 30-45 days interval

Chemical Control

Sl.No Generic Name Trade Name Color code Dosage/litre Recommendation Remarks
Dosage/acre (200 L) Dosage/hectare (500 L)
1 Copper Oxychloride 50 WP Bensaan, Blitox, Blue copper, Bluetrox, Copter, Cupramar, Cuprina, Dhanucop, Fytolan, Fytox, Fytran, Fytolan, Hilcopper, Killex copper, Maincop Dhanucop, Star cop, Tagcop, Trucop Blue 2 g 400 g 1000 g
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Extremely Toxic
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Highly Toxic
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Moderately Toxic
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Slightly Toxic