Jatropha Curcas is gaining importance commercially as the need of nonrenewable fuel sources increases greatly and also Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel alternative and it is also very cost-effective compared to other fuels. Recently, Jatropha is dealing with some difficulty with insects and illness. The bugs are classified into two ranges: Pest that impact young plants and Pest that impact grown plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is commonly known as Cut worm. This bug impacts 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 diminished the plant totally.
Control: This bug can be managed by selecting the larva discovered around the plants or by blending the bran, sawdust with insecticides.
Scarabaeid Beetle: This bug ruins the root of the young plant. Initially, the larva consumes the natural matters present in the soil and after that pertains to the root. The larva attack might kill the entire plant.
Control: The plant with good resistance power can conquer the insect. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to eliminate the insect.
Army worm: Spodoptera litura existence can be determined by biting in the leaves. The extreme infection could entirely eliminate the plants.
Control: Insecticides are utilized to manage the pests.
Grasshopper: This is typical bug found in several plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The pest typically attacks the young plant.
Control: The insecticides utilized betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.
in mature plants:
Pest of Stem: Ostrinia furnacalis, Xyleborus spp.
Ostrinia furnacalis and Xyleborus: This pest harms the jatropha curcas stem and it is widely seen in Indonesia. The stem assaulted by this pest usually drop. The presence 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 typical insects observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This insect can eat all the leaves of the plant in short period. The quality and yield of the seeds get lowered due to the heavy attack.
Control: This can be controlled by picking the old larvae around the surface and discarding the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning experience when permitted to exposure to skin as it produces certain chemical compound. Initially the bug crowded in the leaf and after that spread out 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 controlled by spraying organophosphate insecticides.
Leaf Hopper: This bug is discovered primarily 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 also attacks the leaf and makes the whole plant weak. The bug presence can be recognized when the leaf become yellow-colored, shrinks, turns red and drop. The insect can likewise be spread out through fallen leaves.
Control: Some preventive procedures can be done like proper sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some terrible bug which assaults flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a serious insect which assaults the plant during bloom duration so the crop yield entirely falls down. This pest is seen around the tropical region.
The harmful enzyme in the plant shrinks the whole plant.
Control: Insecticides recommended for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The insects typically happens attacks the plant in flowering season and this pest is seen extensively 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 pointers.
Control: Manually, the attacked seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
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Pests Of Jatropha
Basil Tillyard edited this page 2025-01-18 20:59:47 +09:00