Jatropha Curcas is gaining value commercially as the demand of fossil fuels increases greatly and also Jatropha is an eco-friendly energy plantation. Plantation of this plant is considered to be an outstanding fuel replacement and it is also extremely economical compared to other fuels. Recently, jatropha curcas is facing some trouble with pests and illness. The bugs are classified into 2 ranges: Pest that affect young plants and Pest that affect matured plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently referred to as Cut worm. This insect affects the seedlings and young jatropha curcas plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface and this will shrunk the plant totally.
Control: This pest can be controlled by selecting the larva found 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 consumes the raw materials present in the soil and then comes to the root. The larva attack might eliminate the whole plant.
Control: The plant with excellent resistance power can get rid of the insect. For heavy attack, insecticides with components carbosulfan and carbofuran can be utilized to kill the bug.
Army worm: Spodoptera litura existence can be determined by biting in the leaves. The serious infection could totally eliminate the plants.
Control: Insecticides are used to manage the bugs.
Grasshopper: This prevails insect discovered in a number of plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The insect typically 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 harms the jatropha curcas stem and it is extensively seen in Indonesia. The stem attacked by this insect normally drop. The presence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide generally utilized to control this bug is carbofuran.
Pest of leaf: The typical pests observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This pest can eat all the leaves of the plant simply put duration. The quality and yield of the seeds get lowered due to the heavy attack.
Control: This can be managed by selecting the old larvae around the surface area and throwing away the assaulted leaves.
Needle Caterpillar: This is covered with spines and produces a burning feeling when allowed to exposure to skin as it produces particular chemical substance. Initially the bug crowded in the leaf and after that spread all over the plant when it ages.
Control: Manually, the pest can be killed only by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.
Leaf Hopper: This pest is found mainly in tropical and subtropical areas. The bug targets the leaf and draws all the nutrients of the leaf and gets curls at the idea. 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 also attacks the leaf and makes the entire plant weak. The bug existence can be determined when the leaf become yellowish, diminishes, reddens and fall down. The bug can likewise be spread out through fallen leaves.
Control: Some preventive procedures can be done like appropriate sanitation and burning the fallen leaves. Heavy attack can be dealt with 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 major pest which assaults the plant during blossom duration so the crop yield entirely falls down. This insect is seen around the tropical area.
The hazardous enzyme in the plant diminishes the entire plant.
Control: Insecticides advised for this bug is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The bugs commonly occurs attacks the plant in blooming season and this insect is seen widely 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 suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.
1
Pests Of Jatropha
Mavis Ellsworth edited this page 2025-01-18 15:10:39 +09:00