Jatropha Curcas is gaining significance commercially as the demand of fossil fuels increases significantly and likewise jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is considered to be an outstanding fuel alternative and it is also extremely cost-effective compared to other fuels. Recently, jatropha curcas is facing some difficulty with bugs and diseases. The pests are categorized into two ranges: Pest that impact young plants and Pest that affect matured plants.

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

Agrotis ipsilon: It is commonly understood as Cut worm. This pest 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 shrunk the plant completely.

Control: This insect can be managed by picking 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 consumes the raw materials 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 get rid of the insect. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to eliminate the insect.

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

Control: Insecticides are used to manage the insects.

Grasshopper: This prevails pest discovered in a number of plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The bug typically assaults 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 pest harms the jatropha curcas stem and it is widely seen in Indonesia. The stem assaulted by this bug generally fall down. The presence can be identified by the larva penetration hole at the stem.

Control: The Insecticide usually utilized to control this insect 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 in other words duration. The quality and yield of the seeds get lowered due to the heavy attack.

Control: This can be managed by selecting the old larvae around the surface and discarding the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when permitted to exposure to skin as it produces certain chemical compound. Initially the insect crowded in the leaf and then spread all over the plant when it grows older.

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

Leaf Hopper: This pest is found mostly in tropical and subtropical areas. The pest targets the leaf and draws 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 controlled by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite also assaults the leaf and makes the whole plant weak. The insect presence can be determined when the leaf become yellowish, diminishes, turns red and fall down. The insect can likewise be spread out through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a major pest which attacks the plant throughout blossom duration so the crop yield totally drops. This insect is seen around the tropical region.

The toxic enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The insects typically takes place attacks the plant in flowering season and this insect is seen widely in tropical areas. 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 advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.