Jatropha Curcas is getting importance commercially as the demand of fossil fuels increases tremendously and also Jatropha is an environmentally friendly energy plantation. of this plant is considered to be an exceptional fuel alternative and it is likewise extremely affordable compared to other fuels. Recently, Jatropha is facing some difficulty with bugs and diseases. The bugs are categorized into two varieties: Pest that affect young plants and Pest that affect developed plants.
Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently called Cut worm. This bug impacts 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 entirely.
Control: This pest can be controlled by picking the larva found around the plants or by mixing 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 then comes to the root. The larva attack may kill the whole plant.
Control: The plant with great resistance power can overcome the insect. For heavy attack, insecticides with elements carbosulfan and carbofuran can be utilized to kill the bug.
Army worm: Spodoptera litura existence can be identified by biting in the leaves. The severe infection could totally eliminate the plants.
Control: Insecticides are used to control the insects.
Grasshopper: This prevails insect discovered in several plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The insect typically attacks 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 widely seen in Indonesia. The stem assaulted by this insect generally fall down. The existence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide typically used to manage 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 bug can eat all the leaves of the plant in brief period. The quality and yield of the seeds get decreased due to the heavy attack.
Control: This can be managed by selecting 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 contact with skin as it produces particular chemical compound. Initially the pest crowded in the leaf and after that spread all over the plant when it grows older.
Control: Manually, the bug can be killed only by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.
Leaf Hopper: This bug is found mostly in tropical and subtropical areas. The bug targets the leaf and draws all the nutrients of the leaf and gets curls at the tip. Later, the entire leaf dry and die.
Control: The heavy attack can be controlled 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 identified when the leaf ended up being yellowish, shrinks, reddens and fall down. The bug can also be spread through fallen leaves.
Control: Some preventive procedures can be simulated appropriate sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some dreadful insect 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 throughout blossom period 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 suggested for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The bugs typically happens attacks the plant in flowering season and this insect is seen widely 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 suggestions.
Control: Manually, the assaulted seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
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Pests Of Jatropha
marylinbrault edited this page 2025-01-11 10:18:31 -08:00