Jatropha Curcas is getting significance commercially as the demand of nonrenewable fuel sources increases tremendously 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 really economical compared to other fuels. Recently, jatropha curcas is facing some trouble with insects and illness. The insects are categorized into 2 ranges: Pest that impact young plants and Pest that impact developed plants.
Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently called Cut worm. This pest impacts the seedlings and young jatropha curcas plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant entirely.
Control: This pest can be controlled by selecting 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 raw materials present in the soil and after that pertains to the root. The larva attack might kill the entire plant.
Control: The plant with excellent resistance power can the pest. For heavy attack, insecticides with components carbosulfan and carbofuran can be utilized to eliminate the bug.
Army worm: Spodoptera litura existence can be identified by biting in the leaves. The severe infection might totally kill the plants.
Control: Insecticides are used to control the pests.
Grasshopper: This prevails insect discovered in a number of plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The bug frequently attacks the young plant.
Control: The insecticides used betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.
Pest observed in mature plants:
Pest of Stem: Ostrinia furnacalis, Xyleborus spp.
Ostrinia furnacalis and Xyleborus: This bug damages the Jatropha stem and it is commonly seen in Indonesia. The stem assaulted by this bug generally fall down. The existence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide usually used to manage this insect 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 consume all the leaves of the plant in other words duration. The quality and yield of the seeds get reduced due to the heavy attack.
Control: This can be managed by picking the old larvae around the surface area and tossing away the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when permitted to contact with skin as it produces specific chemical compound. Initially the pest crowded in the leaf and after that spread out 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 pest 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 suggestion. Later, the entire leaf dry and pass away.
Control: The heavy attack can be controlled by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite also assaults the leaf and makes the entire plant weak. The bug existence can be recognized when the leaf become yellowish, diminishes, reddens and drop. The pest can also be spread out through fallen leaves.
Control: Some preventive steps can be simulated correct sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.
Some terrible bug which assaults flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a severe pest which attacks the plant during bloom period so the crop yield completely falls down. This insect is seen around the tropical region.
The harmful enzyme in the plant diminishes the entire plant.
Control: Insecticides advised for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The bugs commonly occurs attacks the plant in flowering season and this bug is seen widely 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.
Control: Manually, the attacked seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.
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Pests Of Jatropha
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