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Jatropha Curcas is getting significance commercially as the demand of fossil fuels increases tremendously and also Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel replacement and it is also very affordable compared to other fuels. Recently, jatropha curcas is dealing with some problem with bugs and illness. The insects are classified into 2 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 commonly referred to as Cut worm. This pest impacts the seedlings and young jatropha curcas plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface area and this will diminished the plant entirely.

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 then comes to the root. The larva attack may eliminate the entire plant.

Control: The plant with good resistance power can get rid of the insect. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to eliminate 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 utilized to control the pests.

Grasshopper: This prevails insect discovered in several plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The pest often 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 stem and it is widely seen in Indonesia. The stem assaulted by this bug usually fall down. The existence can be determined by the larva penetration hole at the stem.

Control: The Insecticide usually utilized to control this insect is carbofuran.

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

Leaf Caterpillar: This pest can eat all the leaves of the plant in short duration. The quality and yield of the seeds get lowered due to the heavy attack.

Control: This can be controlled by choosing the old larvae around the surface and discarding 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 certain chemical substance. Initially the bug crowded in the leaf and then spread out all over the plant when it gets older.

Control: Manually, the bug can be killed only 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 regions. 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 die.

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

Mite: Mite likewise attacks the leaf and makes the whole plant weak. The pest presence can be identified when the leaf ended up being yellow-colored, shrinks, reddens and drop. The pest can also be spread out through fallen leaves.

Control: Some preventive steps can be done like 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 major insect which attacks the plant during blossom period so the crop yield completely falls down. This bug is seen around the tropical region.

The harmful enzyme in the plant diminishes the entire plant.

Control: Insecticides recommended for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and .

Tip borer caterpillar: The pests commonly occurs attacks the plant in flowering season and this bug is seen extensively in tropical regions. The female insect 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.