Jatropha Curcas is acquiring importance commercially as the demand of nonrenewable fuel sources increases tremendously and also jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel substitute and it is likewise very cost-effective compared to other fuels. Recently, jatropha curcas is facing some trouble with pests and illness. The pests are classified into 2 varieties: Pest that impact young plants and Pest that impact matured plants.

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

Agrotis ipsilon: It is typically called 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 and this will diminished the plant totally.

Control: This pest can be managed by selecting the larva discovered around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This bug damages the root of the young plant. Initially, the larva takes in the raw materials present in the soil and then concerns the root. The larva attack might eliminate the entire plant.

Control: The plant with good resistance power can get rid of the pest. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to kill the insect.

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

Control: Insecticides are utilized to control the pests.

Grasshopper: This is typical bug discovered in numerous plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The pest 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 insect damages the Jatropha stem and it is extensively seen in Indonesia. The stem assaulted by this insect typically fall down. The presence can be identified by the larva penetration hole at the stem.

Control: The Insecticide generally used to control this insect is carbofuran.

Pest of leaf: The common pests 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 other words period. The 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 area and discarding the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when permitted to exposure to skin as it produces particular chemical substance. Initially the pest crowded in the leaf and then spread out all over the plant when it gets older.

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

Leaf Hopper: This bug is discovered mainly in tropical and subtropical areas. The pest 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 controlled 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 identified when the leaf become yellowish, diminishes, reddens and fall down. The bug can also be spread out through fallen leaves.

Control: Some preventive steps 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 major bug which assaults 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 whole plant.

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

Tip borer caterpillar: The insects commonly takes place attacks the plant in flowering season and this insect is seen extensively in tropical areas. 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.