Jatropha Curcas is gaining value commercially as the demand of fossil fuels increases significantly and also Jatropha is an eco-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel replacement and it is also very economical compared to other fuels. Recently, jatropha curcas is facing some problem with insects and diseases. The bugs are categorized into 2 varieties: Pest that impact young plants and Pest that affect grown plants.
Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically referred to as Cut worm. This insect affects the seedlings and young Jatropha plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant entirely.
Control: This insect can be controlled by selecting the larva discovered 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 consumes the present in the soil and then pertains to the root. The larva attack might eliminate the entire plant.
Control: The plant with good resistance power can overcome the bug. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to eliminate the insect.
Army worm: Spodoptera litura presence can be determined by biting in the leaves. The serious infection might completely kill the plants.
Control: Insecticides are used to control the bugs.
Grasshopper: This prevails pest found in several plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The pest typically attacks 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 bug harms the Jatropha stem and it is commonly seen in Indonesia. The stem assaulted by this bug usually fall down. The presence can be determined by the larva penetration hole at the stem.
Control: The Insecticide generally utilized to manage this insect is carbofuran.
Pest of leaf: The common bugs 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 period. The quality and yield of the seeds get decreased due to the heavy attack.
Control: This can be controlled by choosing the old larvae around the surface and discarding the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when enabled to exposure to skin as it produces particular chemical compound. Initially the insect crowded in the leaf and after that spread out all over the plant when it gets older.
Control: Manually, the insect can be eliminated just by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.
Leaf Hopper: This pest is discovered mostly in tropical and subtropical areas. The pest targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. Later, the whole leaf dry and pass away.
Control: The heavy attack can be controlled by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite likewise assaults the leaf and makes the entire plant weak. The insect existence can be identified when the leaf ended up being yellowish, shrinks, turns red and fall down. The bug can likewise be spread out through fallen leaves.
Control: Some preventive steps can be done like appropriate sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some awful insect which assaults flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a major insect which assaults the plant throughout bloom duration so the crop yield completely falls down. This pest is seen around the tropical area.
The poisonous enzyme in the plant diminishes the entire plant.
Control: Insecticides recommended for this bug is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The pests frequently occurs attacks the plant in blooming season and this insect is seen commonly in tropical regions. The female bug 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 advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.
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Pests Of Jatropha
Elisha Winston edited this page 2025-01-18 04:21:25 +01:00