Jatropha jatropha curcas is gaining importance commercially as the need of fossil fuels increases enormously and likewise jatropha curcas is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel replacement and it is likewise very affordable compared to other fuels. Recently, Jatropha is facing some problem with pests and . The bugs are categorized into 2 ranges: Pest that impact young plants and Pest that impact matured plants.

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

Agrotis ipsilon: It is commonly called Cut worm. This pest impacts 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 completely.

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

Scarabaeid Beetle: This insect destroys the root of the young plant. Initially, the larva consumes the organic matters present in the soil and after that concerns the root. The larva attack might kill the entire plant.

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

Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The severe infection could completely kill the plants.

Control: Insecticides are used to control the insects.

Grasshopper: This is common insect discovered in several plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The bug frequently assaults 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 insect harms the Jatropha stem and it is widely seen in Indonesia. The stem assaulted by this pest typically drop. The presence can be recognized by the larva penetration hole at the stem.

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

Pest of leaf: The typical bugs 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 decreased due to the heavy attack.

Control: This can be managed by picking the old larvae around the surface and getting rid of the assaulted leaves.

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

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

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

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

Control: Some preventive procedures can be simulated appropriate 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 severe bug which attacks the plant during blossom duration so the crop yield totally drops. This pest is seen around the tropical region.

The toxic enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The insects commonly occurs attacks the plant in blooming season and this pest is seen widely 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 pointers.

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