Jatropha Curcas is getting value commercially as the demand of nonrenewable fuel sources increases greatly and likewise jatropha curcas is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel replacement and it is likewise really cost-effective compared to other fuels. Recently, Jatropha is dealing with some problem with insects and illness. The insects are classified into 2 varieties: Pest that affect young plants and Pest that impact grown plants.

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

Agrotis ipsilon: It is frequently referred to as Cut worm. This bug impacts the seedlings and young jatropha curcas 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 bug can be managed by picking the larva found around the plants or by mixing the bran, sawdust with insecticides.

Scarabaeid Beetle: This insect damages the root of the young plant. Initially, the larva consumes the organic matters present in the soil and then concerns the root. The larva attack may kill the entire plant.

Control: The plant with great resistance power can overcome the pest. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to kill the bug.

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

Control: Insecticides are used to manage the pests.

Grasshopper: This is typical pest discovered in a number of plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The bug typically assaults the young plant.

Control: The insecticides utilized 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 curcas stem and it is commonly seen in Indonesia. The stem assaulted by this insect generally drop. The existence can be determined by the larva penetration hole at the stem.

Control: The Insecticide typically utilized to manage this pest is carbofuran.

Pest of leaf: The common pests observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.

Leaf Caterpillar: This pest can consume all the leaves of the plant in other words duration. The quality 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 getting rid of the attacked leaves.

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

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

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

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

Mite: Mite also attacks the leaf and makes the entire plant weak. The pest presence can be recognized when the leaf ended up being yellowish, shrinks, turns red and drop. The bug can likewise be spread through fallen leaves.

Control: Some preventive measures can be done like correct sanitation and burning the fallen leaves. Heavy attack can be dealt with 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 severe pest which assaults the plant during bloom period so the crop yield entirely falls down. This pest is seen around the tropical area.

The poisonous enzyme in the plant diminishes the whole plant.

Control: Insecticides advised for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.

Tip borer caterpillar: The insects frequently occurs attacks the plant in flowering season and this insect is seen commonly 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 pointers.

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