Jatropha Curcas is getting value commercially as the need of fossil fuels increases enormously and also Jatropha is an eco-friendly energy plantation. Plantation of this plant is considered to be an excellent fuel replacement and it is also extremely affordable compared to other fuels. Recently, jatropha curcas is dealing with some difficulty with pests and illness. The pests are categorized 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 commonly known as Cut worm. This pest affects the seedlings and young Jatropha plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface and this will shrunk the plant entirely.

Control: This pest can be controlled by choosing the larva found around the plants or by mixing 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 comes to the root. The larva attack may kill the entire plant.

Control: The plant with great resistance power can conquer the bug. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to eliminate the bug.

Army worm: Spodoptera litura existence can be identified by biting in the leaves. The serious infection could totally eliminate the plants.

Control: Insecticides are used to manage the bugs.

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

Control: The Insecticide generally used to manage this insect is carbofuran.

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

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

Control: This can be controlled by choosing the old larvae around the surface and tossing away the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning sensation when enabled to exposure to skin as it produces specific chemical substance. Initially the insect crowded in the leaf and after that spread all over the plant when it gets older.

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

Leaf Hopper: This bug is discovered primarily in tropical and subtropical areas. The bug targets the leaf and draws all the nutrients of the leaf and gets curls at the tip. 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 likewise assaults the leaf and makes the entire plant weak. The insect existence can be identified when the leaf ended up being yellowish, shrinks, reddens and fall down. The bug can likewise be spread through fallen leaves.

Control: Some preventive measures can be done like appropriate 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 serious bug which assaults the plant during bloom duration so the crop yield totally falls down. This insect is seen around the tropical area.

The toxic enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The insects typically happens attacks the plant in blooming season and this insect 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 suggestions.

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