One cause of low productivity of citrus in Indonesia is an attack CVPD (Citrus Vein Phloem Degeneration). Diseases caused by Liberobacter asiaticum can be transmitted by seeds that have been infected CPVD, or through insect vectors, ie leafhopper (Diaphorina citri). This disease should be wary of any attempts at rehabilitation or citrus agribusiness development.
CVPD disease control strategies through the Integrated Management of Healthy Citrus Gardens (IMHCG), includes five technology components, namely: (1) using a labeled disease-free citrus seedlings, (2) controlling insects vectors (D. citri) transmitters CVPD carefully, (3) conduct field sanitation carefully, (4) maintaining optimal plant, (5) consolidation of farm management in a development target area. IMHCG be effectively applied to new development areas or areas to be rehabilitated that has been free of citrus trees infected CVPD at least 5 km radius.
Use of Disease-Free Citrus Seedlings
Seed quality citrus are citrus seedlings that is free from systemic pathogens (CVPD, CTV, Vein enation, Exocortis, Psorosis, Xyloporosis and Tatter leaf), as its parent, ie the rootstock varieties and upper trunk guaranteed purity, as well as the production process is based on citrus certification program apply. It means, seed quality citrus is citrus seed labeled disease-free under ideal conditions ready to be planted in the field.
Seed quality citrus are citrus seedlings that is free from systemic pathogens (CVPD, CTV, Vein enation, Exocortis, Psorosis, Xyloporosis and Tatter leaf), as its parent, ie the rootstock varieties and upper trunk guaranteed purity, as well as the production process is based on citrus certification program apply. It means, seed quality citrus is citrus seed labeled disease-free under ideal conditions ready to be planted in the field.
Control of Transmitting Insects CVPD
D. citri can be controlled by spraying the stem by using a systemic insecticide imidacloprid pure active ingredient. Spraying rod performed every 2 to 4 times a week. It can also be carried out by spraying with insecticide dimethoate 2 cc/l pure active ingredient. Insecticide endosulfan 0.05% pure active ingredient effective to control D. citri's eggs, thus effectively applied at the beginning of germination. By way of spraying rod, natural enemies of D. citri is not expected to die. Control CPVD transmitting insects by utilizing natural enemies such as parasites, predators and entomopathogenic its prospects have to be developed in the future.
D. citri can be controlled by spraying the stem by using a systemic insecticide imidacloprid pure active ingredient. Spraying rod performed every 2 to 4 times a week. It can also be carried out by spraying with insecticide dimethoate 2 cc/l pure active ingredient. Insecticide endosulfan 0.05% pure active ingredient effective to control D. citri's eggs, thus effectively applied at the beginning of germination. By way of spraying rod, natural enemies of D. citri is not expected to die. Control CPVD transmitting insects by utilizing natural enemies such as parasites, predators and entomopathogenic its prospects have to be developed in the future.
Garden Sanitation
Garden sanitation is an attempt to throw parts of plants or disassemble CVPD infested trees. Early symptoms can be identified by a 'blotching / motling', ie yellow on the leaves that are not limited by the veins and not symmetrical, stunted leaf growth, smaller leaves, relatively rigid, sharp-pointed and facing up. Pruning infected branches CVPD can be done by cutting a twig shoots two previous periods. Citrus trees that have been infected total must be dismantled down to the roots.
Garden sanitation is an attempt to throw parts of plants or disassemble CVPD infested trees. Early symptoms can be identified by a 'blotching / motling', ie yellow on the leaves that are not limited by the veins and not symmetrical, stunted leaf growth, smaller leaves, relatively rigid, sharp-pointed and facing up. Pruning infected branches CVPD can be done by cutting a twig shoots two previous periods. Citrus trees that have been infected total must be dismantled down to the roots.
Plant maintenance
Maintenance of plants that includes fertilizing, watering, pruning and maintenance of shape, fruit thinning and other important pest control, need attention because it can increase the productivity of plants. Optimal maintenance of the garden will facilitate the implementation of field sanitation because if there is an infected citrus tree CPVD, the symptoms will be more easily detected. Technology citrus garden maintenance recommendation should be specific.
Maintenance of plants that includes fertilizing, watering, pruning and maintenance of shape, fruit thinning and other important pest control, need attention because it can increase the productivity of plants. Optimal maintenance of the garden will facilitate the implementation of field sanitation because if there is an infected citrus tree CPVD, the symptoms will be more easily detected. Technology citrus garden maintenance recommendation should be specific.
Consolidated Management Gardens
CVPD disease control with IMHCG will be successful if implemented in full, correct and well coordinated among farmers and between farmers groups combined.
CVPD disease control with IMHCG will be successful if implemented in full, correct and well coordinated among farmers and between farmers groups combined.
Compiled by Mutia E. Dwiastuti, Anang Triwiratno, and Otto Endarto
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