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Lanora Erickson 2025-01-12 00:12:35 +08:00
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<br>Jatropha Curcas is gaining importance commercially as the need of nonrenewable fuel sources increases greatly and also Jatropha is an environmentally friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel substitute and it is also very affordable compared to other fuels. Recently, Jatropha is facing some problem with pests and illness. The bugs are into two ranges: Pest that affect young plants and Pest that affect matured plants.<br>
<br>Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.<br>
<br>Agrotis ipsilon: It is frequently called Cut worm. This insect impacts 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 totally.<br>
<br>Control: This insect can be controlled by picking the larva discovered around the plants or by mixing the bran, sawdust with insecticides.<br>
<br>Scarabaeid Beetle: This bug damages 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.<br>
<br>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 eliminate the pest.<br>
<br>Army worm: Spodoptera litura existence can be identified by biting in the leaves. The serious infection could entirely eliminate the plants.<br>
<br>Control: Insecticides are used to control the insects.<br>
<br>Grasshopper: This prevails pest discovered in numerous plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The pest often assaults 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 insect harms the Jatropha stem and it is commonly seen in Indonesia. The stem assaulted by this bug typically fall down. The existence can be identified by the larva penetration hole at the stem.<br>
<br>Control: The Insecticide generally used 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 simply put period. The quality and yield of the seeds get minimized due to the heavy attack.<br>
<br>Control: This can be controlled by picking the old larvae around the surface area and discarding the attacked leaves.<br>
<br>Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when permitted to call with skin as it produces specific chemical substance. Initially the bug crowded in the leaf and then spread all over the plant when it ages.<br>
<br>Control: Manually, the insect can be eliminated just by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.<br>
<br>Leaf Hopper: This insect is found primarily in tropical and subtropical regions. The pest targets the leaf and draws all the nutrients of the leaf and gets curls at the pointer. Later, the entire 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 likewise attacks the leaf and makes the whole plant weak. The pest existence can be recognized when the leaf ended up being yellow-colored, shrinks, turns red and fall down. The insect can likewise be spread through fallen leaves.<br>
<br>Control: Some preventive steps can be done like correct sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.<br>
<br>Some terrible bug 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 insect which assaults the plant during bloom duration so the crop yield completely drops. This pest is seen around the tropical region.<br>
<br>The hazardous enzyme in the plant diminishes the entire plant.<br>
<br>Control: Insecticides advised for this bug is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.<br>
<br>Tip borer caterpillar: The pests commonly occurs attacks the plant in flowering season and this bug is seen commonly 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 ideas.<br>
<br>Control: Manually, the attacked seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.<br>