Jatropha Curcas is gaining significance commercially as the demand of nonrenewable fuel sources increases significantly and likewise jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel alternative and it is likewise extremely economical compared to other fuels. Recently, Jatropha is facing some difficulty with bugs and illness. The insects are categorized into two ranges: Pest that impact young plants and Pest that affect matured plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is commonly called Cut worm. This pest affects the seedlings and young jatropha curcas 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 bug can be controlled by the larva discovered around the plants or by mixing the bran, sawdust with insecticides.
Scarabaeid Beetle: This bug destroys the root of the young plant. Initially, the larva consumes the raw materials present in the soil and then concerns the root. The larva attack may eliminate the entire plant.
Control: The plant with good resistance power can conquer the insect. For heavy attack, insecticides with components carbosulfan and carbofuran can be utilized to eliminate the pest.
Army worm: Spodoptera litura existence can be recognized by biting in the leaves. The severe infection could entirely eliminate the plants.
Control: Insecticides are utilized to manage the pests.
Grasshopper: This prevails pest found in a number of plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The pest frequently 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 pest harms the jatropha curcas stem and it is extensively seen in Indonesia. The stem assaulted by this bug normally drop. The existence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide normally utilized to manage this insect is carbofuran.
Pest of leaf: The typical 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 other words period. The quality and yield of the seeds get minimized due to the heavy attack.
Control: This can be controlled by picking the old larvae around the surface and getting rid of the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when allowed to exposure to skin as it produces specific chemical compound. Initially the pest crowded in the leaf and after that spread out all over the plant when it ages.
Control: Manually, the bug can be killed just by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.
Leaf Hopper: This pest is discovered primarily in tropical and subtropical regions. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the pointer. Later, the entire leaf dry and pass away.
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 presence can be determined when the leaf become yellow-colored, diminishes, reddens and fall down. The bug can likewise be spread out through fallen leaves.
Control: Some preventive measures can be done like appropriate sanitation and burning the fallen leaves. Heavy attack can be dealt with 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 attacks 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 shrinks the entire plant.
Control: Insecticides advised for this bug is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The bugs typically occurs attacks the plant in flowering season and this insect is seen commonly in tropical areas. 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 assaulted seeds are recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
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Pests Of Jatropha
Chloe Silver edited this page 2025-01-18 02:24:56 +08:00