Jatropha Curcas is getting value commercially as the need of nonrenewable fuel sources increases greatly and also Jatropha is an environmentally friendly energy plantation. Plantation of this plant is considered to be an excellent fuel alternative and it is likewise really cost-effective compared to other fuels. Recently, Jatropha is dealing with some difficulty with pests and diseases. The pests are classified into 2 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 frequently referred to as Cut worm. This pest 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 completely.
Control: This insect can be managed by choosing the larva discovered 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 natural matters present in the soil and after that comes to the root. The larva attack might eliminate the entire plant.
Control: The plant with great resistance power can get rid of the insect. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to kill the pest.
Army worm: Spodoptera litura existence can be identified by biting in the leaves. The severe infection might completely eliminate the plants.
Control: Insecticides are used to manage the insects.
Grasshopper: This prevails pest found in plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The pest typically attacks the young plant.
Control: The insecticides used betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.
Pest observed in mature plants:
Pest of Stem: Ostrinia furnacalis, Xyleborus spp.
Ostrinia furnacalis and Xyleborus: This insect damages the jatropha curcas stem and it is widely seen in Indonesia. The stem attacked by this pest usually fall down. The existence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide generally utilized 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 insect can consume all the leaves of the plant simply put period. The quality and yield of the seeds get reduced due to the heavy attack.
Control: This can be controlled by selecting the old larvae around the surface area and discarding the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when permitted to exposure to skin as it produces particular chemical substance. 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 discovered primarily in tropical and subtropical regions. The pest targets the leaf and draws 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 attacks 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 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 dreadful bug which attacks flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a severe pest which assaults the plant throughout bloom period so the crop yield entirely falls down. This bug is seen around the tropical region.
The harmful enzyme in the plant diminishes the whole plant.
Control: Insecticides recommended for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The bugs frequently happens attacks the plant in blooming season and this insect is seen commonly in tropical areas. 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 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
Deloras Nevarez edited this page 2025-01-12 01:02:16 +01:00