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Jatropha Curcas is gaining significance commercially as the need of fossil fuels increases tremendously and also jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is considered to be an excellent fuel substitute and it is also very economical compared to other fuels. Recently, jatropha curcas is dealing with some problem with pests and diseases. The bugs are classified into 2 ranges: Pest that impact young plants and Pest that impact matured plants.

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

Agrotis ipsilon: It is frequently referred to as Cut worm. This pest affects the seedlings and young jatropha curcas plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant totally.

Control: This bug 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 consumes the natural matters present in the soil and then pertains to the root. The larva attack might kill the entire plant.

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

Army worm: Spodoptera litura existence can be determined by biting in the leaves. The severe infection could completely eliminate the plants.

Control: Insecticides are utilized to manage the bugs.

Grasshopper: This prevails pest found in numerous plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The pest typically assaults 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 bug harms the jatropha curcas stem and it is widely seen in Indonesia. The stem assaulted by this insect normally drop. The presence can be recognized by the larva penetration hole at the stem.

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

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

Leaf Caterpillar: This bug can consume all the leaves of the plant simply put duration. The quality and yield of the seeds get lowered due to the heavy attack.

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

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when allowed to contact with skin as it produces certain 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 just by it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.

Leaf Hopper: This insect is discovered primarily in tropical and subtropical regions. The insect 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 insect existence can be recognized when the leaf ended up being yellowish, diminishes, reddens and drop. The bug can likewise be spread out through fallen leaves.

Control: Some preventive procedures can be done like correct sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.

Some dreadful insect which attacks flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a serious bug which assaults the plant during blossom duration so the crop yield completely drops. This pest is seen around the tropical area.

The poisonous enzyme in the plant diminishes the whole plant.

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

Tip borer caterpillar: The bugs commonly occurs attacks the plant in flowering season and this pest is seen extensively 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 tips.

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