Jatropha Curcas is acquiring value commercially as the demand of fossil fuels increases greatly and also Jatropha is an environmentally friendly energy plantation. Plantation of this plant is considered to be an outstanding fuel alternative and it is also really affordable compared to other fuels. Recently, Jatropha is facing some trouble with insects and illness. The insects are categorized into 2 varieties: Pest that impact young plants and Pest that affect grown plants.
Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently called Cut worm. This pest affects the seedlings and young jatropha curcas plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface and this will shrunk the plant completely.
Control: This insect can be managed by choosing the larva discovered around the plants or by mixing the bran, sawdust with insecticides.
Scarabaeid Beetle: This pest ruins the root of the young plant. Initially, the larva takes in the raw materials present in the soil and after that comes to the root. The larva attack may eliminate the entire plant.
Control: The plant with great resistance power can conquer the bug. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to kill the bug.
Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The serious infection could totally eliminate the plants.
Control: Insecticides are utilized to control the insects.
Grasshopper: This prevails pest discovered in several plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The insect often assaults the young plant.
Control: The insecticides utilized betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.
Pest observed in fully grown plants:
Pest of Stem: Ostrinia furnacalis, Xyleborus spp.
Ostrinia furnacalis and Xyleborus: This insect harms the Jatropha stem and it is commonly seen in Indonesia. The stem attacked by this bug normally drop. The existence can be identified by the larva penetration hole at the stem.
Control: The Insecticide generally utilized to manage this pest is carbofuran.
Pest of leaf: The typical pests observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This bug can eat all the leaves of the plant in brief duration. The quality and yield of the seeds get reduced due to the heavy attack.
Control: This can be managed by selecting the old larvae around the surface and discarding the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when allowed to exposure to skin as it produces certain chemical substance. Initially the pest crowded in the leaf and after that spread all over the plant when it grows older.
Control: Manually, the bug can be killed just by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.
Leaf Hopper: This bug is found primarily in tropical and subtropical areas. The insect targets the leaf and draws all the nutrients of the leaf and gets curls at the suggestion. Later, the entire leaf dry and die.
Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite likewise attacks the leaf and makes the whole plant weak. The bug presence can be identified when the leaf ended up being yellowish, shrinks, reddens and fall down. The bug can likewise be spread through fallen leaves.
Control: Some preventive measures can be done like correct sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some awful bug which assaults flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a major pest which assaults the plant during bloom period so the crop yield entirely falls down. This bug is seen around the tropical area.
The hazardous enzyme in the plant diminishes the entire plant.
Control: Insecticides advised for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The pests frequently occurs attacks the plant in and this pest is seen widely in tropical regions. The female bug laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant suggestions.
Control: Manually, the attacked seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
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Pests Of Jatropha
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