Jatropha Curcas is acquiring significance commercially as the demand of fossil fuels increases significantly and likewise jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel substitute and it is also very economical compared to other fuels. Recently, jatropha curcas is dealing with some trouble with bugs and illness. The bugs are classified into two ranges: Pest that affect young plants and Pest that impact developed plants.
Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently referred to as Cut worm. This insect 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 entirely.
Control: This insect can be managed by choosing the larva found around the plants or by blending the bran, sawdust with insecticides.
Scarabaeid Beetle: This bug destroys the root of the young plant. Initially, the larva consumes the natural matters present in the soil and then pertains to the root. The larva attack may kill the whole plant.
Control: The plant with great resistance power can get rid of the bug. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to eliminate the insect.
Army worm: Spodoptera litura existence can be recognized by biting in the leaves. The extreme infection could entirely kill the plants.
Control: Insecticides are utilized to control the bugs.
Grasshopper: This prevails pest discovered in numerous plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The pest typically attacks the young plant.
Control: The insecticides used betacyfluthrin, cypermethrin, thiodicarb, MIPC, and .
Pest observed in mature plants:
Pest of Stem: Ostrinia furnacalis, Xyleborus spp.
Ostrinia furnacalis and Xyleborus: This bug damages the jatropha curcas stem and it is commonly seen in Indonesia. The stem attacked by this insect generally drop. The presence can be determined by the larva penetration hole at the stem.
Control: The Insecticide normally used to manage this pest is carbofuran.
Pest of leaf: The typical bugs observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This pest can eat 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 controlled by picking the old larvae around the surface area and getting rid of the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when allowed to call with skin as it produces certain chemical compound. Initially the bug crowded in the leaf and then spread all over the plant when it grows older.
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 bug 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 idea. Later, the entire leaf dry and pass away.
Control: The heavy attack can be controlled by using insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite likewise assaults the leaf and makes the entire plant weak. The insect existence can be determined when the leaf ended up being yellow-colored, shrinks, reddens and drop. The pest can likewise be spread through fallen leaves.
Control: Some preventive procedures can be simulated correct sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.
Some terrible bug which attacks flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a severe bug which assaults the plant throughout blossom duration so the crop yield completely drops. This insect is seen around the tropical region.
The toxic enzyme in the plant shrinks the entire plant.
Control: Insecticides advised for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The pests commonly occurs attacks the plant in blooming season and this insect is seen extensively 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 suggestions.
Control: Manually, the attacked seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
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Pests Of Jatropha
Leesa Medworth edited this page 2025-01-12 06:19:10 +08:00