Jatropha Curcas is getting significance commercially as the demand of fossil fuels increases enormously and likewise jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel substitute and it is also very cost-effective compared to other fuels. Recently, jatropha curcas is facing some problem with pests and diseases. The insects are categorized into 2 varieties: Pest that affect young plants and Pest that affect developed plants.
Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically referred to as Cut worm. This bug 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 area and this will shrunk the plant totally.
Control: This insect can be controlled by picking the larva found around the plants or by blending the bran, sawdust with insecticides.
Scarabaeid Beetle: This pest ruins the root of the young plant. Initially, the larva takes in the raw materials present in the soil and then pertains to the root. The larva attack may eliminate the entire plant.
Control: The plant with good resistance power can overcome the bug. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to eliminate the pest.
Army worm: Spodoptera litura existence can be recognized by biting in the leaves. The severe infection could totally kill the plants.
Control: Insecticides are used to manage the bugs.
Grasshopper: This is common insect found 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 mature plants:
Pest of Stem: Ostrinia furnacalis, Xyleborus spp.
Ostrinia furnacalis and Xyleborus: This pest damages the Jatropha stem and it is widely seen in Indonesia. The stem assaulted by this insect normally fall down. The existence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide usually used to manage this bug 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 consume all the leaves of the plant in other words duration. The quality and yield of the seeds get minimized due to the heavy attack.
Control: This can be managed by choosing the old larvae around the surface area and tossing away the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when allowed to exposure to skin as it produces certain chemical substance. Initially the insect crowded in the leaf and after that spread all over the plant when it gets older.
Control: Manually, the bug 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 primarily in tropical and subtropical regions. The insect targets the leaf and sucks all the nutrients of the leaf and gets curls at the pointer. 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 pest existence can be recognized when the leaf ended up being yellow-colored, diminishes, turns red and fall down. The bug can also be spread through fallen leaves.
Control: Some preventive measures can be simulated appropriate sanitation and burning the . Heavy attack can be dealt with by spraying insecticides.
Some dreadful insect which attacks flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a severe bug which attacks the plant throughout bloom period so the crop yield totally drops. This pest is seen around the tropical area.
The poisonous enzyme in the plant diminishes the whole plant.
Control: Insecticides suggested for this bug is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The bugs typically takes place attacks the plant in flowering season and this bug 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 tips.
Control: Manually, the assaulted seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.
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Pests Of Jatropha
Marisol Cable edited this page 2025-01-16 22:15:40 +01:00