Jatropha Curcas is acquiring importance commercially as the need of nonrenewable fuel sources increases greatly and also jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel replacement and it is likewise extremely economical compared to other fuels. Recently, Jatropha is dealing with some trouble with pests and diseases. The insects are classified into two ranges: Pest that affect young plants and Pest that impact grown plants.
Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically referred to as Cut worm. This pest impacts the seedlings and young Jatropha 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 entirely.
Control: This insect can be controlled by choosing the larva found around the plants or by mixing the bran, sawdust with insecticides.
Scarabaeid Beetle: This pest destroys the root of the young plant. Initially, the larva takes in the organic matters present in the soil and then pertains to the root. The larva attack may eliminate the entire plant.
Control: The plant with excellent resistance power can conquer the insect. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to eliminate the bug.
Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The extreme infection might completely eliminate the plants.
Control: Insecticides are utilized to manage the bugs.
Grasshopper: This is typical insect discovered in numerous plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The insect often assaults 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 stem and it is widely seen in Indonesia. The stem assaulted by this pest typically fall down. The existence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide normally utilized to control 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 insect can consume all the leaves of the plant in brief 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 area and throwing away the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a when permitted to contact with skin as it produces specific chemical compound. Initially the bug crowded in the leaf and after that spread out all over the plant when it gets 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 insect is found primarily in tropical and subtropical regions. The insect targets the leaf and draws all the nutrients of the leaf and gets curls at the idea. Later, the entire leaf dry and pass away.
Control: The heavy attack can be managed by using insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite likewise attacks the leaf and makes the entire plant weak. The pest existence can be determined when the leaf ended up being yellow-colored, shrinks, reddens and fall down. The pest can likewise be spread through fallen leaves.
Control: Some preventive measures can be simulated proper sanitation and burning the fallen leaves. Heavy attack can be treated 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 major bug which attacks the plant during bloom duration so the crop yield totally falls down. This pest is seen around the tropical region.
The harmful enzyme in the plant diminishes the whole plant.
Control: Insecticides advised for this bug is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The bugs frequently occurs attacks the plant in flowering season and this insect is seen widely 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 blooming season.
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Pests Of Jatropha
otiliaheney437 edited this page 2025-01-18 23:31:52 +08:00