Jatropha Curcas is getting importance commercially as the need of fossil fuels increases enormously and likewise Jatropha is an eco-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel replacement and it is also really cost-effective compared to other fuels. Recently, Jatropha is facing some difficulty with pests and illness. The bugs are classified into 2 varieties: Pest that affect young plants and Pest that affect matured plants.
Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically called 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 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 ruins the root of the young plant. Initially, the larva takes in the natural matters present in the soil and then pertains to the root. The larva attack may kill the entire plant.
Control: The plant with good resistance power can conquer the pest. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to kill the insect.
Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The extreme infection could completely kill the plants.
Control: Insecticides are utilized to manage the insects.
Grasshopper: This is typical pest discovered in several plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The insect typically attacks 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 commonly seen in Indonesia. The stem attacked by this bug usually drop. The presence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide usually used to manage this insect is carbofuran.
Pest of leaf: The common pests 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 period. The quality and yield of the seeds get decreased due to the heavy attack.
Control: This can be managed by selecting the old larvae around the surface and getting rid of the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning sensation when enabled to call with skin as it produces specific chemical compound. Initially the insect crowded in the leaf and then spread out all over the plant when it ages.
Control: Manually, the insect 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 mainly in tropical and subtropical regions. The bug targets the leaf and draws 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 attacks the leaf and makes the entire plant weak. The insect existence can be determined when the leaf become yellowish, shrinks, reddens and drop. The insect can likewise be spread through fallen leaves.
Control: Some preventive measures can be done like proper 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 assaults the plant during blossom duration so the crop yield totally drops. This bug is seen around the tropical region.
The hazardous enzyme in the plant diminishes the entire plant.
Control: Insecticides recommended for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The bugs typically takes place attacks the plant in flowering season and this pest is seen extensively 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 suggestions.
Control: Manually, the attacked seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.
1
Pests Of Jatropha
bonitabetche3 edited this page 2025-01-12 03:13:14 +08:00