Jatropha Curcas is acquiring importance commercially as the need of fossil fuels increases greatly and likewise jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel replacement and it is likewise really cost-effective compared to other fuels. Recently, jatropha curcas is facing some difficulty with pests and illness. The insects are classified into two varieties: Pest that impact young plants and Pest that impact matured plants.
Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is commonly called Cut worm. This pest affects the seedlings and young Jatropha plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface area and this will diminished the plant completely.
Control: This bug can be controlled by selecting 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 takes in the raw materials present in the soil and then comes to the root. The larva attack might kill the entire plant.
Control: The plant with great resistance power can conquer the bug. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to kill the bug.
Army worm: Spodoptera litura existence can be recognized by biting in the leaves. The extreme infection might entirely eliminate the plants.
Control: Insecticides are used to manage the insects.
Grasshopper: This prevails bug discovered in several plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The insect frequently 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 damages the Jatropha stem and it is commonly seen in Indonesia. The stem attacked by this pest normally drop. The existence can be determined by the larva penetration hole at the stem.
Control: The Insecticide usually utilized to control this bug is carbofuran.
Pest of leaf: The common insects observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This insect can consume 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 controlled by selecting the old larvae around the surface area and tossing away 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 certain chemical compound. Initially the bug crowded in the leaf and then spread all over the plant when it ages.
Control: Manually, the bug can be eliminated just by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate .
Leaf Hopper: This pest is found primarily in tropical and subtropical regions. The pest 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 using insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite likewise attacks the leaf and makes the entire plant weak. The insect presence can be identified when the leaf become yellowish, diminishes, reddens and fall down. The insect can also be spread through fallen leaves.
Control: Some preventive procedures can be simulated proper sanitation and burning the fallen leaves. Heavy attack can be treated 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 bug which attacks the plant during bloom duration so the crop yield entirely falls down. This bug is seen around the tropical region.
The poisonous enzyme in the plant shrinks the entire plant.
Control: Insecticides advised for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The bugs typically happens attacks the plant in flowering season and this pest is seen commonly in tropical regions. The female pest 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 advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
1
Pests Of Jatropha
Consuelo Distefano edited this page 2025-01-18 08:18:02 -06:00