Jatropha jatropha curcas is gaining significance commercially as the need of fossil fuels increases greatly and also jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel alternative and it is likewise extremely economical compared to other fuels. Recently, jatropha curcas is dealing with some trouble with insects and illness. The bugs are categorized into 2 varieties: Pest that impact young plants and Pest that impact grown plants.
Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically understood as Cut worm. This insect impacts the seedlings and young jatropha curcas plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface area and this will shrunk the plant completely.
Control: This pest can be controlled by choosing the larva found around the plants or by mixing the bran, sawdust with insecticides.
Scarabaeid Beetle: This insect damages the root of the young plant. Initially, the larva takes in the organic matters present in the soil and then concerns the root. The larva attack may eliminate the whole plant.
Control: The plant with great resistance power can overcome the bug. For heavy attack, insecticides with parts carbosulfan and carbofuran can be utilized to eliminate the insect.
Army worm: Spodoptera litura existence can be determined by biting in the leaves. The extreme infection might completely eliminate the plants.
Control: Insecticides are utilized to manage the pests.
Grasshopper: This prevails insect discovered in several plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The insect often assaults 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 damages the Jatropha stem and it is widely seen in Indonesia. The stem attacked by this pest 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 bug can eat all the leaves of the plant in other words duration. The quality and yield of the seeds get decreased due to the heavy attack.
Control: This can be managed by picking the old larvae around the surface and getting rid of the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when enabled to exposure to skin as it produces particular chemical substance. Initially the insect crowded in the leaf and after that spread out all over the plant when it gets older.
Control: Manually, the pest can be eliminated only by it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.
Leaf Hopper: This bug is found primarily 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 entire leaf dry and pass away.
Control: The heavy attack can be controlled by using insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite also attacks the leaf and makes the whole plant weak. The insect existence can be recognized when the leaf ended up being yellow-colored, diminishes, turns red and drop. The bug can also be spread through fallen leaves.
Control: Some preventive procedures can be simulated appropriate sanitation and burning the fallen leaves. Heavy attack can be treated 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 pest which attacks the plant during bloom period so the crop yield completely drops. This pest is seen around the tropical area.
The toxic enzyme in the plant shrinks the entire plant.
Control: Insecticides advised for this bug is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The insects typically occurs attacks the plant in blooming season and this insect is seen widely 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 ideas.
Control: Manually, the attacked seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
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Pests Of Jatropha
ceceliayocum87 edited this page 2025-01-19 01:27:54 +11:00