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<br>Jatropha Curcas is getting value commercially as the demand of fossil fuels increases enormously and also Jatropha is an environmentally friendly energy plantation. of this plant is considered to be an outstanding fuel alternative and it is likewise extremely affordable compared to other fuels. Recently, Jatropha is facing some difficulty with insects and diseases. The insects are categorized into two ranges: Pest that impact young plants and Pest that affect developed plants.<br>
<br>Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.<br>
<br>Agrotis ipsilon: It is commonly referred to 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 area and this will shrunk the plant completely.<br>
<br>Control: This pest can be managed by selecting the larva discovered around the plants or by blending the bran, sawdust with insecticides.<br>
<br>Scarabaeid Beetle: This pest damages the root of the young plant. Initially, the larva takes in the raw materials present in the soil and after that comes to the root. The larva attack might kill the entire plant.<br>
<br>Control: The plant with good resistance power can conquer the insect. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to kill the insect.<br>
<br>Army worm: Spodoptera litura existence can be identified by biting in the leaves. The extreme infection might totally kill the plants.<br>
<br>Control: Insecticides are used to control the bugs.<br>
<br>Grasshopper: This is common pest discovered in several plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The bug often attacks the young plant.<br>
<br>Control: The insecticides used betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.<br>
<br>Pest observed in fully grown plants:<br>
<br>Pest of Stem: Ostrinia furnacalis, Xyleborus spp.<br>
<br>Ostrinia furnacalis and Xyleborus: This pest harms the Jatropha stem and it is commonly seen in Indonesia. The stem attacked by this bug normally fall down. The existence can be identified by the larva penetration hole at the stem.<br>
<br>Control: The Insecticide normally utilized to manage this bug is carbofuran.<br>
<br>Pest of leaf: The common pests observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.<br>
<br>Leaf Caterpillar: This bug can consume all the leaves of the plant in other words period. The quality and yield of the seeds get lowered due to the heavy attack.<br>
<br>Control: This can be controlled by picking the old larvae around the surface area and throwing away the assaulted leaves.<br>
<br>Needle Caterpillar: This caterpillar is covered with spines and produces a burning sensation when enabled to exposure to skin as it produces certain chemical substance. Initially the pest crowded in the leaf and after that spread out all over the plant when it grows older.<br>
<br>Control: Manually, the bug can be eliminated only by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.<br>
<br>Leaf Hopper: This pest is discovered mainly in tropical and subtropical areas. The insect targets the leaf and draws all the nutrients of the leaf and gets curls at the pointer. Later, the whole leaf dry and die.<br>
<br>Control: The heavy attack can be controlled by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.<br>
<br>Mite: Mite also attacks the leaf and makes the whole plant weak. The pest presence can be recognized when the leaf become yellowish, shrinks, reddens and drop. The bug can likewise be spread through fallen leaves.<br>
<br>Control: Some preventive measures can be simulated correct sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.<br>
<br>Some terrible insect which attacks flower and fruit are, Stink bug (Nezara viridula)<br>
<br>Chrysocoris javanus, Tip borer caterpillar.<br>
<br>Stink Bug: Sting bug is a severe pest which assaults the plant during blossom period so the crop yield entirely falls down. This bug is seen around the tropical area.<br>
<br>The harmful enzyme in the plant shrinks the entire plant.<br>
<br>Control: Insecticides recommended for this bug is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.<br>
<br>Tip borer caterpillar: The insects commonly takes place attacks the plant in flowering season and this pest is seen widely in tropical areas. The female bug laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant ideas.<br>
<br>Control: Manually, the attacked seeds are recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.<br>
