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Jatropha Curcas is acquiring significance commercially as the need of fossil fuels increases significantly and also Jatropha is an environment-friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel alternative and it is also very affordable compared to other fuels. Recently, Jatropha is facing some trouble with insects and illness. The pests are categorized into 2 varieties: Pest that impact young plants and Pest that affect developed plants.

Young plant bugs: Cutworm, Beetle, Army worm, Grasshopper.

Agrotis ipsilon: It is commonly known as Cut worm. This bug impacts the seedlings and young Jatropha plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant totally.

Control: This insect can be controlled by choosing the larva discovered around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This insect ruins the root of the young plant. Initially, the larva takes in the natural matters present in the soil and then comes to the root. The larva attack might eliminate the entire plant.

Control: The plant with excellent resistance power can overcome the pest. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to eliminate the pest.

Army worm: Spodoptera litura presence can be identified by biting in the leaves. The severe infection could completely eliminate the plants.

Control: Insecticides are used to control the insects.

Grasshopper: This is common pest discovered in a number of plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The insect often attacks the young plant.

Control: The insecticides used betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.

Pest observed in mature plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This insect damages the Jatropha stem and it is widely seen in Indonesia. The stem attacked by this pest normally fall down. The presence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide typically utilized to control this bug 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 simply put period. The quality and yield of the seeds get decreased due to the heavy attack.

Control: This can be managed by selecting the old larvae around the surface area and getting rid of the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning experience when enabled to call with skin as it produces specific chemical substance. Initially the pest crowded in the leaf and after that spread out all over the plant when it grows older.

Control: Manually, the pest 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 regions. The bug targets the leaf and draws all the nutrients of the leaf and gets curls at the suggestion. Later, the entire leaf dry and pass away.

Control: The heavy attack can be controlled by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite also assaults the leaf and makes the entire plant weak. The pest existence can be recognized when the leaf ended up being yellow-colored, diminishes, reddens and drop. The pest can likewise be spread out through fallen leaves.

Control: Some preventive measures can be simulated appropriate sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.

Some dreadful bug which assaults flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a serious insect which assaults the plant throughout blossom duration so the crop yield totally falls down. This pest is seen around the tropical region.

The harmful enzyme in the plant shrinks the entire plant.

Control: Insecticides recommended for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.

Tip borer caterpillar: The insects frequently happens attacks the plant in flowering season and this insect 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 tips.

Control: Manually, the attacked seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.