5. Tea Mosquito Bug
Helopeltis antonii
• Feeding puncture - circular water soaked spots - turn pitch black in color -
multiple feeding injuries-Deformation of pods.
• Neem Oil 3%
• spraying - Imidacloprid (0.6 ml/lit) , Thiamethoxam (0.6g/litre),
Profenophos (2 ml/litre)
6. Mealy Bugs
Paracoccus marginatus, Planococcoides sp. , Planococcus lilacinus, P. citri
• Damage : - Shoot tip
- Buds
- Flower cushions
- Cherelles
• Summer – Spindle leaves, spathes & bunches
• Symptoms – Yellowing - Dry up : Retarded growth, excessive branching at undesired
height - Abortion – Wilting of cherelles
• Neem Oil 3% or FORS 25g/litre
• Dimethoate (2 ml/litre) , Profenophos (2 ml/litre), Chlorpyriphos (5 ml/litre), Buprofezin
(2 ml/litre), Imidacloprid (0.6 ml/lit), Thiamethoxam (0.6g/litre)
7. Flattid Plant Hoppers
• Desapping - tender shoots and pods - honey dew - sooty mould
fungus on the leaves and pods.
• Management: Foliar application of Thiacloprid @ 2 ml/litre twice at
5 days interval
8. Aphids
Toxoptera aurantii and Aphis gossypii
• colonize - underside of tender leaves, succulent stem, flower buds
and small cherelles.
• Heavy infestation - during hot summer and after rainy season -
brings premature shedding of flowers and curling of leaves.
• Management : Spraying of dimethoate @ 2 ml per litre
9. Ash weevils
Myllocerus viridanus , M. maculosus
• Feed on the older leaves – underside- interveinal tissues –
skeletonized – growth retardation.
• Peak in July-September , more severe in coconut-cocoa system.
• Fenitrothion 0.05%, Quinalphos 0.025% or Fenthion 0.05%.
10. Hairy caterpillars
(Lymantriya sp., Euproctis sp., Dasychira sp.,)
• serious leaf damage on seedlings and young trees.
• Management: Foliar spray of acephate @ 2g/litre.
11. Stem Girdler
Sthenias grisator
• Female beetle - girdles the branches and inserts whitish spindle shaped
eggs singly into the tissue in a slanting manner.
• branches above the girdle wither and dry.
• Swab Coal tar + Kerosene @ 1:2
• Injection of dichlorvas + monocrotophos solution into bore holes - Clay
12. Stem Borer
Zeuzera coffeae
• Caterpillars – Bore the young branches – unramfied hollow tunnels
inside
• Round hole on the stem – drying up – excreta, frass strewn out on the
ground.
• Prune and destroy
• Smear the affected portion with Carbaryl 0.1 %
13.
14. Rats
Rattus rattus, Bandicota spp.
• Ripe pods - gnaw the bronzing pods near the stalk portion and
mucilaginous pulp is eaten.
• Inhabit the coconut palm crowns
• 10 g bromadiolone (0.005%) wax cakes / ripe banana stuffed with
carbofuran - branches - twice @ an interval of 10-12 days./ Frond of the
coconut
• Set up bamboo traps with bow attachment on the crown of palms.
16. Striped Squirrels
Funambulus tristriatus , Funambulus palmarum
• Gnaw the pod- oval hole at the center or terminal portion
• trapping with wooden or wire mesh single catch ‘live’ trap with ripe
coconut kernel as the bait.
• Right time harvest – bronzing
• Mechanical protection - covering with punched polybags (150
gauge) smeared with bitumen-kerosene mixture.
17. Palm Civet
Paradoxurus hermaphroditus
• Bite & Break @ terminal half / One side of the pod – Beans swollen as such.
• “Civet Cocoa”
• Trapping
• Poison bait – O.5 g of Carbofuran granules using ripe banana - 2/ trunk @ 5-
6 trees/ha.