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Jatropha Curcas is gaining value commercially as the demand of nonrenewable fuel sources increases enormously and also Jatropha is an environment-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel substitute and it is likewise really affordable compared to other fuels. Recently, Jatropha is dealing with some problem with insects and diseases. The bugs are categorized into two ranges: Pest that affect young plants and Pest that impact developed plants.

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

Agrotis ipsilon: It is frequently referred to as 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 surface and this will shrunk the plant totally.

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

Scarabaeid Beetle: This bug destroys the root of the young plant. Initially, the larva takes in the organic matters present in the soil and after that pertains 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 components carbosulfan and carbofuran can be used to kill 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 utilized to manage the insects.

Grasshopper: This is common insect found in several plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The bug typically 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 pest harms the Jatropha stem and it is extensively seen in Indonesia. The stem attacked by this pest typically drop. The existence can be determined by the larva penetration hole at the stem.

Control: The Insecticide normally used to control this bug is carbofuran.

Pest of leaf: The typical pests 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 brief duration. The quality and yield of the seeds get decreased due to the heavy attack.

Control: This can be controlled by picking the old larvae around the surface area and throwing away the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when allowed to exposure to skin as it produces certain chemical substance. Initially the insect crowded in the leaf and then spread out all over the plant when it gets 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 regions. The pest targets the leaf and draws 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 managed by using insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite also the leaf and makes the entire plant weak. The pest existence can be determined when the leaf ended up being yellow-colored, shrinks, 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 treated by spraying insecticides.

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a major bug which assaults the plant throughout blossom period so the crop yield entirely drops. This insect is seen around the tropical area.

The hazardous enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The bugs commonly happens attacks the plant in blooming season and this insect is seen commonly in tropical areas. 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 advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.