Jatropha Curcas is gaining value commercially as the demand of fossil fuels increases enormously and likewise jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel substitute and it is likewise really affordable compared to other fuels. Recently, jatropha curcas is facing some difficulty with pests and illness. The pests are classified into 2 varieties: Pest that impact young plants and Pest that affect developed plants.

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

Agrotis ipsilon: It is commonly called Cut worm. This insect affects 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 shrunk the plant completely.

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 damages the root of the young plant. Initially, the larva takes in the raw materials present in the soil and after that pertains to the root. The larva attack may eliminate the entire plant.

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

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

Control: Insecticides are utilized to manage the pests.

Grasshopper: This prevails insect discovered in several plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The bug typically 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 insect harms the jatropha curcas stem and it is commonly seen in Indonesia. The stem attacked by this pest usually drop. The existence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide generally used to control this bug 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 eat all the leaves of the plant in other words duration. The quality and yield of the seeds get decreased due to the heavy attack.

Control: This can be managed by picking the old larvae around the surface and throwing away the assaulted leaves.

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

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

Leaf Hopper: This pest is found mostly in tropical and subtropical areas. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. 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 insect presence can be determined when the leaf ended up being yellowish, shrinks, reddens and fall down. The pest can also be spread through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a major pest which assaults the plant throughout bloom duration so the crop yield completely falls down. This pest is seen around the tropical region.

The toxic enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The insects commonly happens attacks the plant in blooming season and this insect is seen widely 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 suggestions.

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