Jatropha Curcas is getting value commercially as the need of nonrenewable fuel sources increases tremendously and also jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel alternative and it is likewise extremely affordable compared to other fuels. Recently, Jatropha is dealing with some trouble with insects and illness. The pests are classified into 2 varieties: Pest that affect young plants and Pest that impact matured plants.
Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is commonly understood as Cut worm. This insect impacts the seedlings and young Jatropha plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant totally.
Control: This pest can be controlled by selecting the larva discovered around the plants or by blending the bran, sawdust with insecticides.
Scarabaeid Beetle: This insect destroys the root of the young plant. Initially, the larva consumes the organic matters present in the soil and then concerns the root. The larva attack might kill the entire plant.
Control: The plant with excellent resistance power can overcome the insect. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to kill the bug.
Army worm: Spodoptera litura existence can be determined by biting in the leaves. The serious infection could totally eliminate the plants.
Control: Insecticides are used to manage the insects.
Grasshopper: This is typical insect discovered in a number of plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The insect often attacks 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 pest harms the jatropha curcas stem and it is extensively seen in Indonesia. The stem assaulted by this bug typically drop. The presence can be determined by the larva penetration hole at the stem.
Control: The Insecticide generally used to control this insect is carbofuran.
Pest of leaf: The common insects observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This insect can consume all the leaves of the plant in short duration. The quality and yield of the seeds get minimized due to the heavy attack.
Control: This can be controlled by picking the old larvae around the surface and throwing away the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when allowed to call with skin as it produces particular chemical substance. Initially the pest crowded in the leaf and after that spread all over the plant when it grows older.
Control: Manually, the pest can be only by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.
Leaf Hopper: This insect is found mostly in tropical and subtropical areas. The pest targets the leaf and draws all the nutrients of the leaf and gets curls at the pointer. Later, the entire leaf dry and pass away.
Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite also attacks the leaf and makes the entire plant weak. The pest presence can be determined when the leaf become yellowish, shrinks, turns red and fall down. The bug can also be spread through fallen leaves.
Control: Some preventive procedures 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 bug which attacks the plant throughout bloom period so the crop yield completely falls down. This insect is seen around the tropical region.
The poisonous enzyme in the plant shrinks the entire plant.
Control: Insecticides recommended for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The bugs frequently occurs attacks the plant in flowering season and this insect is seen widely in tropical regions. The female pest laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant tips.
Control: Manually, the attacked seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.
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Pests Of Jatropha
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