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Jatropha Curcas is gaining significance commercially as the need of fossil fuels increases significantly and likewise Jatropha is an environment-friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel substitute and it is likewise really economical compared to other fuels. Recently, Jatropha is facing some trouble with insects and illness. The bugs are classified into 2 ranges: Pest that affect young plants and Pest that affect matured plants.

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

Agrotis ipsilon: It is typically referred to as Cut worm. This pest impacts the seedlings and young Jatropha 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 pest can be managed by picking 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 pertains to the root. The larva attack may eliminate the whole plant.

Control: The plant with excellent resistance power can overcome the bug. 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 severe infection could entirely eliminate the plants.

Control: Insecticides are used to control the pests.

Grasshopper: This prevails insect found in numerous plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The insect often assaults the young plant.

Control: The insecticides used betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.

Pest observed in fully grown plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This bug damages the Jatropha stem and it is commonly seen in Indonesia. The stem attacked by this pest generally fall down. The existence can be determined by the larva penetration hole at the stem.

Control: The Insecticide typically utilized 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 other words duration. The quality and yield of the seeds get minimized due to the heavy attack.

Control: This can be managed 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 feeling when allowed to call with skin as it produces particular chemical compound. Initially the insect crowded in the leaf and then spread all over the plant when it gets older.

Control: Manually, the pest 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 areas. 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 utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

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

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a severe pest which assaults the plant during bloom period so the crop yield entirely drops. This insect is seen around the tropical region.

The poisonous enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The bugs commonly happens attacks the plant in blooming season and this pest is seen widely 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 tips.

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