Jatropha Curcas is getting significance commercially as the demand of nonrenewable fuel sources increases greatly and likewise jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is considered to be an outstanding fuel substitute and it is likewise very cost-effective compared to other fuels. Recently, jatropha curcas is facing some difficulty with insects and diseases. The pests are classified into 2 varieties: Pest that affect young plants and Pest that impact grown 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 impacted by the cutworm, the stem gets cut nearer to the soil surface and this will shrunk the plant entirely.
Control: This pest can be managed by choosing the larva found around the plants or by mixing the bran, sawdust with insecticides.
Scarabaeid Beetle: This pest ruins the root of the young plant. Initially, the larva takes in the organic matters present in the soil and then comes to the root. The larva attack might eliminate the whole plant.
Control: The plant with excellent resistance power can get rid of the insect. For heavy attack, insecticides with components carbosulfan and carbofuran can be utilized to kill the bug.
Army worm: Spodoptera litura presence can be determined by biting in the leaves. The serious infection could totally kill the plants.
Control: Insecticides are used to manage the bugs.
Grasshopper: This is common pest discovered in several plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The insect often attacks the young plant.
Control: The insecticides used betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.
Pest observed in fully grown plants:
Pest of Stem: Ostrinia furnacalis, Xyleborus spp.
Ostrinia furnacalis and Xyleborus: This pest harms the Jatropha stem and it is widely seen in Indonesia. The stem assaulted by this pest normally fall down. The presence can be determined by the larva penetration hole at the stem.
Control: The Insecticide generally utilized to manage this bug is carbofuran.
Pest of leaf: The typical insects 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 minimized due to the heavy attack.
Control: This can be managed by selecting the old larvae around the surface area and discarding the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when allowed to contact with skin as it produces specific chemical substance. Initially the bug crowded in the leaf and then spread out all over the plant when it grows older.
Control: Manually, the insect can be eliminated just by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.
Leaf Hopper: This bug is discovered mainly in tropical and subtropical regions. The bug targets the leaf and draws all the nutrients of the leaf and gets curls at the pointer. Later, the whole leaf dry and pass away.
Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite likewise assaults the leaf and makes the entire plant weak. The bug existence can be recognized when the leaf become yellow-colored, shrinks, reddens and fall down. The pest can likewise be spread out through fallen leaves.
Control: Some preventive measures can be done like appropriate sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.
Some awful pest which assaults flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a major bug which attacks the plant throughout blossom period so the crop yield completely drops. This bug is seen around the tropical area.
The hazardous enzyme in the plant diminishes the whole plant.
Control: Insecticides suggested for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The pests commonly occurs attacks the plant in blooming season and this pest is seen extensively in tropical areas. The female insect laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant pointers.
Control: Manually, the are recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
1
Pests Of Jatropha
Melvina Holte edited this page 2025-01-12 05:06:13 -05:00