Jatropha Curcas is getting value commercially as the need of fossil fuels increases greatly and likewise jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel substitute and it is also extremely cost-effective compared to other fuels. Recently, Jatropha is facing some difficulty with insects and illness. The bugs are categorized into 2 ranges: Pest that impact young plants and Pest that impact developed plants.

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

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

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

Scarabaeid Beetle: This pest ruins the root of the young plant. Initially, the larva consumes the organic matters present in the soil and after that concerns the root. The larva attack may eliminate the entire plant.

Control: The plant with excellent resistance power can conquer the insect. For heavy attack, insecticides with elements carbosulfan and carbofuran can be utilized to kill the insect.

Army worm: Spodoptera litura existence can be recognized by biting in the leaves. The extreme infection might entirely kill the plants.

Control: Insecticides are utilized to manage the bugs.

Grasshopper: This prevails insect found in several plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The insect often assaults 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 pest harms the Jatropha stem and it is extensively seen in Indonesia. The stem attacked by this insect usually fall down. The existence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide typically used 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 pest can eat all the leaves of the plant in short duration. The quality and yield of the seeds get lowered due to the heavy attack.

Control: This can be managed by picking 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 enabled to exposure to skin as it produces specific chemical substance. Initially the insect crowded in the leaf and then spread out all over the plant when it grows older.

Control: Manually, the pest can be killed only by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.

Leaf Hopper: This pest is found mainly in tropical and subtropical regions. The insect targets the leaf and sucks all the nutrients of the leaf and gets curls at the idea. Later, the entire leaf dry and pass away.

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

Mite: Mite likewise assaults the leaf and makes the entire plant weak. The bug existence can be identified when the leaf become yellow-colored, shrinks, reddens and drop. The pest can also be spread out through fallen leaves.

Control: Some preventive procedures can be done like correct sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a severe bug which attacks the plant throughout blossom duration so the crop yield drops. This insect is seen around the tropical region.

The poisonous enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The pests commonly happens attacks the plant in blooming season and this pest is seen widely in tropical areas. The female bug laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant pointers.

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