Jatropha Curcas is acquiring importance commercially as the need of fossil fuels increases tremendously and likewise jatropha curcas is an environmentally friendly energy plantation. Plantation of this plant is considered to be an excellent fuel alternative and it is likewise extremely cost-effective compared to other fuels. Recently, jatropha curcas is dealing with some trouble with bugs and illness. The pests are classified into 2 ranges: Pest that affect young plants and Pest that impact developed plants.

Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.

Agrotis ipsilon: It is frequently referred to 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 the larva found around the plants or by mixing the bran, sawdust with insecticides.

Scarabaeid Beetle: This insect ruins the root of the young plant. Initially, the larva consumes the raw materials present in the soil and after that concerns the root. The larva attack might 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 utilized to kill the pest.

Army worm: Spodoptera litura existence can be determined by biting in the leaves. The extreme infection could totally kill the plants.

Control: Insecticides are used to manage the pests.

Grasshopper: This is common bug discovered in a number of plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The bug frequently assaults the young plant.

Control: The insecticides used 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 damages the jatropha curcas stem and it is extensively seen in Indonesia. The stem assaulted by this insect generally drop. The existence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide typically used to control this insect 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 consume all the leaves of the plant in short period. The quality and yield of the seeds get decreased due to the heavy attack.

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

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when enabled to contact with skin as it produces specific chemical compound. Initially the insect crowded in the leaf and then spread out all over the plant when it ages.

Control: Manually, the insect can be eliminated just by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.

Leaf Hopper: This bug is found mostly in tropical and subtropical regions. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. Later, the whole leaf dry and pass away.

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

Mite: Mite likewise attacks the leaf and makes the entire plant weak. The pest presence can be recognized when the leaf become yellow-colored, diminishes, turns red and fall down. The insect can likewise be spread out through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a serious pest which attacks the plant during blossom duration so the crop yield entirely drops. This bug is seen around the tropical area.

The poisonous enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The insects commonly occurs attacks the plant in blooming season and this insect is seen commonly in tropical areas. The female insect laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant tips.

Control: Manually, the assaulted seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.