Jatropha Curcas is getting significance commercially as the demand of fossil fuels increases enormously and likewise jatropha curcas is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel substitute and it is also very economical compared to other fuels. Recently, Jatropha is dealing with some trouble with pests and illness. The insects are classified into two varieties: Pest that affect young plants and Pest that affect developed plants.

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

Agrotis ipsilon: It is frequently called Cut worm. This insect impacts the seedlings and young Jatropha plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil and this will shrunk the plant completely.

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

Scarabaeid Beetle: This bug destroys the root of the young plant. Initially, the larva takes in the natural matters present in the soil and then comes to the root. The larva attack may kill the whole plant.

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

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

Control: Insecticides are used to control the insects.

Grasshopper: This is common bug discovered in several plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The insect frequently 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 bug damages the Jatropha stem and it is commonly seen in Indonesia. The stem assaulted by this pest usually fall down. The presence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide usually used to manage 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 bug 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 controlled by choosing the old larvae around the surface area and discarding the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning experience when permitted to contact with skin as it produces certain chemical compound. Initially the pest crowded in the leaf and after that spread out all over the plant when it ages.

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 insect is found 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 managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite likewise assaults the leaf and makes the whole plant weak. The pest existence can be determined when the leaf become yellow-colored, diminishes, reddens and drop. The pest can also be spread through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a severe pest which attacks the plant during bloom period so the crop yield totally drops. This bug is seen around the tropical area.

The hazardous enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The bugs typically takes place attacks the plant in blooming 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 suggestions.

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