Jatropha Curcas is gaining value commercially as the need of nonrenewable fuel sources increases tremendously and also Jatropha is an environment-friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel alternative and it is likewise very affordable compared to other fuels. Recently, Jatropha is dealing with some problem with pests and illness. The pests are categorized into 2 ranges: Pest that impact young plants and Pest that affect developed plants.

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

Agrotis ipsilon: It is typically known as Cut worm. This bug 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 diminished the plant completely.

Control: This bug 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 excellent resistance power can overcome the bug. For heavy attack, insecticides with parts carbosulfan and carbofuran can be utilized to kill the bug.

Army worm: Spodoptera litura existence can be recognized by biting in the leaves. The extreme infection might totally kill the plants.

Control: Insecticides are utilized to manage the pests.

Grasshopper: This prevails bug found in numerous plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The bug frequently assaults the young plant.

Control: The insecticides utilized 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 stem and it is extensively seen in Indonesia. The stem attacked by this insect normally fall down. The existence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide generally utilized to manage this pest 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 consume all the leaves of the plant simply put period. The quality and yield of the seeds get reduced due to the heavy attack.

Control: This can be managed by choosing the old larvae around the surface and throwing away the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when enabled to contact with skin as it produces particular chemical compound. Initially the bug crowded in the leaf and after that spread all over the plant when it grows older.

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

Leaf Hopper: This insect is found mostly in tropical and subtropical regions. The bug targets the leaf and draws 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 managed by using insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite also attacks the leaf and makes the entire plant weak. The bug presence can be recognized when the leaf ended up being yellowish, diminishes, turns red and fall down. The insect can also be spread through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

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

The toxic enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The insects commonly occurs attacks the plant in flowering season and this bug 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 ideas.

Control: Manually, the assaulted seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.