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Jatropha Curcas is getting value commercially as the need of nonrenewable fuel sources increases greatly and likewise Jatropha is an environmentally friendly energy plantation. Plantation of this plant is considered to be an excellent fuel replacement and it is also very affordable compared to other fuels. Recently, Jatropha is dealing with some problem with pests and illness. The bugs are classified into two varieties: Pest that impact young plants and Pest that affect developed plants.

Young plant bugs: 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 affected by the cutworm, the stem gets cut nearer to the soil surface area and this will the plant totally.

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

Scarabaeid Beetle: This insect ruins the root of the young plant. Initially, the larva takes in the organic matters present in the soil and then comes to the root. The larva attack might eliminate the entire plant.

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

Army worm: Spodoptera litura presence can be identified by biting in the leaves. The severe infection could totally kill the plants.

Control: Insecticides are used to control the insects.

Grasshopper: This prevails insect discovered in several plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The insect frequently attacks 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 harms the Jatropha stem and it is commonly seen in Indonesia. The stem attacked by this insect generally drop. 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 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 controlled by choosing 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 enabled to exposure to skin as it produces specific chemical compound. Initially the bug crowded in the leaf and after that spread all over the plant when it grows older.

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

Leaf Hopper: This pest is discovered mostly in tropical and subtropical areas. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the suggestion. 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 assaults the leaf and makes the entire plant weak. The pest existence can be determined when the leaf become yellow-colored, shrinks, reddens and fall down. The pest 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 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 severe insect which assaults the plant during bloom period so the crop yield completely falls down. This pest is seen around the tropical region.

The toxic enzyme in the plant diminishes the entire plant.

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

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

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