Jatropha Curcas is gaining value commercially as the need of nonrenewable fuel sources increases significantly and likewise Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel alternative and it is also extremely economical compared to other fuels. Recently, is facing some trouble with insects and diseases. The bugs are classified into 2 varieties: Pest that affect young plants and Pest that affect matured plants.
Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently called Cut worm. This insect 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 diminished the plant totally.
Control: This bug can be managed by choosing the larva discovered around the plants or by blending the bran, sawdust with insecticides.
Scarabaeid Beetle: This pest damages the root of the young plant. Initially, the larva consumes the raw materials present in the soil and then comes to the root. The larva attack may eliminate the entire plant.
Control: The plant with excellent resistance power can overcome the bug. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to eliminate the bug.
Army worm: Spodoptera litura presence can be determined by biting in the leaves. The serious infection might totally kill the plants.
Control: Insecticides are used to manage the insects.
Grasshopper: This prevails pest 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 mature plants:
Pest of Stem: Ostrinia furnacalis, Xyleborus spp.
Ostrinia furnacalis and Xyleborus: This bug harms the jatropha curcas stem and it is commonly seen in Indonesia. The stem assaulted by this pest generally fall down. The existence can be determined by the larva penetration hole at the stem.
Control: The Insecticide typically utilized to control 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 pest can eat all the leaves of the plant in brief period. The quality and yield of the seeds get reduced due to the heavy attack.
Control: This can be controlled by choosing 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 permitted to call with skin as it produces particular chemical compound. Initially the insect crowded in the leaf and then spread all over the plant when it gets older.
Control: Manually, the pest 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 discovered primarily in tropical and subtropical areas. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the suggestion. Later, the entire leaf dry and die.
Control: The heavy attack can be managed 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 ended up being yellowish, diminishes, reddens and drop. The insect can also be spread through fallen leaves.
Control: Some preventive measures can be simulated proper sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.
Some terrible 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 throughout blossom period so the crop yield entirely falls down. This bug is seen around the tropical area.
The harmful enzyme in the plant shrinks the entire plant.
Control: Insecticides recommended for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The insects frequently happens attacks the plant in flowering season and this insect 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 tips.
Control: Manually, the attacked seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.
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Pests Of Jatropha
Roger Kinross edited this page 2025-01-12 19:55:21 +00:00