Jatropha Curcas is acquiring significance commercially as the need 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 likewise extremely cost-effective compared to other fuels. Recently, Jatropha is dealing with some problem with insects and diseases. The insects are categorized into two varieties: Pest that impact young plants and Pest that impact matured plants.
Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically understood as Cut worm. This pest affects the seedlings and young jatropha curcas plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface and this will shrunk the plant completely.
Control: This bug can be managed by 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 comes to the root. The larva attack may eliminate the entire plant.
Control: The plant with good resistance power can overcome the pest. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to kill the pest.
Army worm: Spodoptera litura existence can be recognized by biting in the leaves. The extreme infection might completely kill the plants.
Control: Insecticides are used to control the pests.
Grasshopper: This prevails insect discovered in numerous plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The pest often attacks the young plant.
Control: The insecticides utilized betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.
Pest observed in fully grown plants:
Pest of Stem: Ostrinia furnacalis, Xyleborus spp.
Ostrinia furnacalis and Xyleborus: This bug harms the jatropha curcas stem and it is extensively seen in Indonesia. The stem attacked by this pest normally fall down. The presence can be determined by the larva penetration hole at the stem.
Control: The Insecticide normally used to manage this bug is carbofuran.
Pest of leaf: The common bugs observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This bug can eat all the leaves of the plant simply put period. The quality and yield of the seeds get decreased due to the heavy attack.
Control: This can be controlled by selecting the old larvae around the surface area and getting rid of the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when enabled to exposure to skin as it produces particular chemical substance. Initially the pest crowded in the leaf and then spread out all over the plant when it grows older.
Control: Manually, the pest can be eliminated only by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.
Leaf Hopper: This insect 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 suggestion. 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 assaults the leaf and makes the entire plant weak. The bug existence can be identified when the leaf ended up being yellow-colored, shrinks, reddens and fall down. The insect can likewise be spread through fallen leaves.
Control: Some preventive measures can be simulated correct sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some dreadful pest which assaults 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 bloom duration so the crop yield completely falls down. This bug is seen around the tropical area.
The hazardous 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 typically takes place attacks the plant in blooming season and this pest is seen commonly 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 recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
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Pests Of Jatropha
Armando Larocque edited this page 7 months ago