Jatropha Curcas is acquiring significance commercially as the demand of fossil fuels increases significantly and also jatropha curcas is an environmentally friendly energy plantation. Plantation of this plant is considered to be an outstanding fuel alternative and it is likewise really cost-effective compared to other fuels. Recently, Jatropha is dealing with some trouble with bugs and illness. The pests are classified into two varieties: Pest that impact young plants and Pest that affect grown plants.
Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently known as Cut worm. This bug impacts the seedlings and young Jatropha plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface and this will shrunk the plant totally.
Control: This bug can be controlled by picking the larva discovered around the plants or by mixing the bran, sawdust with insecticides.
Scarabaeid Beetle: This insect ruins the root of the young plant. Initially, the larva consumes the raw materials present in the soil and after that comes to the root. The larva attack may kill the whole plant.
Control: The plant with great resistance power can get rid of the pest. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to eliminate the pest.
Army worm: Spodoptera litura existence can be identified by biting in the leaves. The severe infection could totally kill the plants.
Control: Insecticides are utilized to control the insects.
Grasshopper: This is common bug found in numerous plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The bug typically assaults 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 insect harms the jatropha curcas stem and it is commonly seen in Indonesia. The stem attacked by this pest typically drop. The existence can be determined by the larva penetration hole at the stem.
Control: The Insecticide generally utilized to control 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 insect can eat 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 selecting the old larvae around the surface and tossing away the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when allowed to call with skin as it produces specific chemical compound. Initially the insect crowded in the leaf and after that spread out all over the plant when it ages.
Control: Manually, the insect can be killed just by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.
Leaf Hopper: This bug is discovered mostly in tropical and subtropical areas. The insect targets the leaf and draws all the nutrients of the leaf and gets curls at the tip. Later, the whole leaf dry and die.
Control: The heavy attack can be controlled by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite likewise assaults the leaf and makes the entire plant weak. The pest existence can be recognized when the leaf become yellowish, diminishes, reddens and fall down. The insect can also be spread out through fallen leaves.
Control: Some preventive procedures can be simulated appropriate sanitation and burning the fallen leaves. Heavy attack can be treated by .
Some terrible bug which assaults flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a major pest which assaults the plant throughout blossom duration so the crop yield completely falls down. This pest is seen around the tropical area.
The toxic 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 pests typically occurs attacks the plant in blooming 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 pointers.
Control: Manually, the assaulted seeds are recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.
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Pests Of Jatropha
Mitch O'Meara edited this page 2025-01-18 20:50:59 +08:00