Jatropha jatropha curcas is acquiring importance commercially as the need of fossil fuels increases greatly and likewise Jatropha is an eco-friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel substitute and it is likewise very economical compared to other fuels. Recently, Jatropha is dealing with some trouble with pests and diseases. The bugs are classified into two ranges: Pest that affect young plants and Pest that impact matured plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently known 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 managed by selecting 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 consumes the natural matters present in the soil and after that comes to the root. The might kill the entire plant.
Control: The plant with excellent resistance power can get rid of the bug. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to eliminate the pest.
Army worm: Spodoptera litura existence can be determined by biting in the leaves. The serious infection could entirely eliminate the plants.
Control: Insecticides are utilized to control the insects.
Grasshopper: This is typical pest discovered in numerous plants. Valanga nigricornis and Locusta migratoria widely assaults 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 insect damages the Jatropha stem and it is widely seen in Indonesia. The stem assaulted by this bug usually fall down. The existence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide typically used to manage this bug is carbofuran.
Pest of leaf: The common bugs observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This bug can consume all the leaves of the plant in other words duration. The quality and yield of the seeds get lowered due to the heavy attack.
Control: This can be controlled by selecting the old larvae around the surface and discarding the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning experience when allowed to call with skin as it produces particular 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 mostly 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 managed by using 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 ended up being yellow-colored, diminishes, turns red and fall down. The pest can also be spread through fallen leaves.
Control: Some preventive steps can be simulated appropriate sanitation and burning the fallen leaves. Heavy attack can be treated 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 serious pest which assaults the plant during bloom period so the crop yield entirely falls down. This insect is seen around the tropical area.
The poisonous enzyme in the plant diminishes the entire plant.
Control: Insecticides suggested for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The bugs frequently takes place attacks the plant in flowering 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 suggestions.
Control: Manually, the assaulted seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
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Pests Of Jatropha
Andrew Flanery edited this page 2025-01-18 08:38:14 +00:00