Jatropha Curcas is gaining value commercially as the demand of fossil fuels increases tremendously and also jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel alternative and it is also really cost-effective compared to other fuels. Recently, jatropha curcas is facing some trouble with pests and diseases. The insects are classified into 2 varieties: 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 called Cut worm. This pest affects the seedlings and young jatropha curcas plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface area and this will shrunk the plant totally.

Control: This pest can be managed by selecting the larva found around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This pest destroys the root of the young plant. Initially, the larva consumes the raw materials present in the soil and after that pertains to the root. The larva attack might kill the entire plant.

Control: The plant with great resistance power can get rid of the insect. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to kill the bug.

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

Control: Insecticides are used to control the bugs.

Grasshopper: This prevails pest discovered in a number of plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The insect typically attacks the young plant.

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

Pest observed in mature plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This pest harms the jatropha curcas stem and it is extensively seen in Indonesia. The stem attacked by this insect normally fall down. The presence can be identified by the larva penetration hole at the stem.

Control: The Insecticide usually used to manage this bug is carbofuran.

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

Leaf Caterpillar: This bug can eat all the leaves of the plant in short duration. 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 area and throwing away the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when enabled to exposure to skin as it produces certain chemical substance. Initially the pest crowded in the leaf and then spread out all over the plant when it gets older.

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

Leaf Hopper: This bug is found mainly in tropical and subtropical regions. The insect 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 controlled by using insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite likewise assaults the leaf and makes the entire plant weak. The insect existence can be recognized when the leaf ended up being yellowish, shrinks, reddens and fall down. The pest can also be spread out through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

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

The poisonous enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The bugs commonly takes place attacks the plant in blooming season and this bug 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 ideas.

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