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<br>Jatropha Curcas is acquiring value commercially as the demand of nonrenewable fuel sources increases enormously and also Jatropha is an environment-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel substitute and it is also really economical compared to other fuels. Recently, Jatropha is facing some difficulty with pests and diseases. The bugs are categorized into two ranges: Pest that affect young plants and Pest that affect grown plants.<br>
<br>Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.<br>
<br>Agrotis ipsilon: It is frequently referred to as Cut worm. This insect affects the seedlings and young Jatropha plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface area and this will diminished the plant entirely.<br>
<br>Control: This pest can be managed by choosing the larva found around the plants or by mixing the bran, sawdust with insecticides.<br>
<br>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 comes to the root. The larva attack may eliminate the entire plant.<br>
<br>Control: The plant with good resistance power can get rid of the bug. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to eliminate the insect.<br>
<br>Army worm: Spodoptera litura existence can be recognized by biting in the leaves. The serious infection might entirely kill the plants.<br>
<br>Control: Insecticides are used to control the pests.<br>
<br>Grasshopper: This is common bug discovered in several plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The pest typically attacks the young plant.<br>
<br>Control: The insecticides used betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.<br>
<br>Pest observed in mature 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 widely seen in Indonesia. The stem assaulted by this pest typically drop. The presence can be identified by the larva penetration hole at the stem.<br>
<br>Control: The Insecticide generally utilized to manage this insect is carbofuran.<br>
<br>Pest of leaf: The typical pests observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.<br>
<br>Leaf Caterpillar: This bug can eat all the leaves of the plant in other words duration. The quality and yield of the seeds get decreased due to the heavy attack.<br>
<br>Control: This can be managed by choosing the old larvae around the surface area and tossing away the assaulted leaves.<br>
<br>Needle Caterpillar: This caterpillar is covered with spines and a burning feeling when allowed to exposure to skin as it produces particular chemical substance. Initially the insect crowded in the leaf and then spread out all over the plant when it ages.<br>
<br>Control: Manually, the insect can be killed just by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.<br>
<br>Leaf Hopper: This pest is found mostly in tropical and subtropical regions. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. Later, the whole leaf dry and pass away.<br>
<br>Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.<br>
<br>Mite: Mite also assaults the leaf and makes the whole plant weak. The pest existence can be determined when the leaf ended up being yellow-colored, diminishes, turns red and drop. The insect can also be spread through fallen leaves.<br>
<br>Control: Some preventive steps can be simulated correct sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.<br>
<br>Some awful insect which assaults flower and fruit are, Stink bug (Nezara viridula)<br>
<br>Chrysocoris javanus, Tip borer caterpillar.<br>
<br>Stink Bug: Sting bug is a serious bug which assaults the plant during bloom duration so the crop yield completely drops. This insect is seen around the tropical region.<br>
<br>The toxic enzyme in the plant diminishes the entire plant.<br>
<br>Control: Insecticides advised for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.<br>
<br>Tip borer caterpillar: The pests commonly occurs attacks the plant in blooming season and this pest is seen commonly in tropical regions. The female pest 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 assaulted seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.<br>