Jatropha Curcas is getting value commercially as the demand of nonrenewable fuel sources increases tremendously and also jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is considered to be an outstanding fuel alternative and it is also extremely affordable compared to other fuels. Recently, Jatropha is dealing with some problem with insects and illness. The bugs are categorized into two varieties: Pest that affect young plants and Pest that impact grown plants.

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

Agrotis ipsilon: It is frequently called Cut worm. This bug affects the seedlings and young jatropha curcas plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface area and this will shrunk the plant completely.

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 ruins the root of the young plant. Initially, the larva consumes the natural matters present in the soil and after that concerns the root. The larva attack may eliminate the entire plant.

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

Army worm: Spodoptera litura existence can be determined by biting in the leaves. The extreme infection might entirely eliminate the plants.

Control: Insecticides are used to control the bugs.

Grasshopper: This prevails bug found in several plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The bug typically attacks 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 pest harms the Jatropha stem and it is widely seen in Indonesia. The stem assaulted by this bug generally fall down. The presence can be identified by the larva penetration hole at the stem.

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

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

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

Control: This can be controlled by selecting 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 sensation when allowed to exposure to skin as it produces specific chemical compound. Initially the insect crowded in the leaf and then spread all over the plant when it ages.

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

Leaf Hopper: This insect is found primarily in tropical and subtropical areas. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the pointer. Later, the entire leaf dry and die.

Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

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

Control: Some preventive measures 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 severe pest which assaults the plant during blossom duration so the crop yield completely drops. This bug is seen around the tropical region.

The hazardous enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The pests frequently occurs attacks the plant in blooming season and this pest is seen widely in tropical regions. 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 attacked seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.