cropping patternsWritten By bagong sajiwo on Thursday, May 16, 2013 | 04:14LIFE CYCLE stem borer and its control
CONDITIONRice stem borer is an insect pest in rice crops in diverse ecosystems. In Indonesia and the intensity of borer attack fluctuate widely between years, however, a major pest that attacks the widest among insect pests of rice.TYPES stem borerThere are 6 types of rice stem borer, namely:1. Winches Trunk White Rice (Tryporyza innotata)2. Yellow Rice Stem winches (Scirpopaga incertulas)3. Winches Batang Padi Pink (Sesamia inferen)4. Rice Striped Stem winches (Chilo supressalis)5. Rod Rice Black-Headed winches (Chilo polychrysus)6. Batang Padi winches Eye limbed (Diopsis macropthalma)Of the six species are only four species is commonly found or pests untama cause, rice stem borers and black head glistening rice stem borers are rarely found because of the low population. Each rice stem borer species have different properties or characteristics in the spread and bioecology, but almost the same in the way of attacking or broaching rice plants and the damage they cause.Below is a stem borer life cycle DAMAGES attack symptoms on vegetative stage led to the demise of the middle and called sundep shoots. Yield losses due to rice stem borer attack at vegetative stage is not too big because the plant is able to compensate by forming new tillers. Simulation based on vegetative stage, plants are still able to compensate for the damage caused by borers to 30%. Symptoms at stadia generative cause appears white and empty panicles are called outs loss in yield caused any symptoms outs percent range 1-3% or an average of 1.2%.A. Endemic areas Attacks1. Cropping pattern setting
Simultaneous planting
Crop rotation with crops instead of rice.
Nursery grouping intended to facilitate collection efforts borer egg mass.
Setting the time of planting in the early rainy season by flying moths or larvae populations in rice stubble.
2. Physical and Mechanical Control
Penyabitan physical way is to plant as low as possible to the surface of the soil at harvest
Mechanical means can be done by collecting groups of rice stem borer eggs in nursery 3. Biological Control
Utilization of natural enemies of both parasitoids.
Conservation of natural enemies by avoiding insecticide spray application. groups of eggs were taken from plants collected in a container and left the hatch open, so that if there is an egg parasitoid could take to the field as part of conservation.
4. Control of Chemicallygroup of eggs was found on average more than one group of eggs / 3 m2 or the average intensity of attack:> 5%. When a group of egg parasitization rate in the early phase of vegetative> 50% do not need the application of insecticides.
Granular insecticide use in the nursery is done if there is land surrounding the crop being harvested at or before the 7 days before planting. Granular insecticides on pertanman given chiefly at vegetative stage. In the generative stadia sprayed with an insecticide application.
Insecticides containing carbofuran granules is the trade name, Dharmafur 3G, Curaterr 3G, 3G Indofuran, Tomafur 3G, 3G Sprinkles, Petrofur 3G, 3G Hidrofur, insecticides containing the active ingredient fipronil that Regent 0.3 G. Liquid insecticides containing fipronil is the trade name Regent Rope 50SC and 25 EC, insecticide containing the active ingredient dimehipo, Bisultaf, Monosultaf the trade name Stopgrek (SHS) Stuntman 500 ml, with the trade name Bancol bensultaf 50 WP, 5. Use of Sex Pheromones
Used to determine the species and monitor population fluctuations stem borer moths were caught by.
Can be used to determine the time of application of insecticides on rice yellow stem borer (When the pheromone catch as many as 100 birds / week).
Can be used for white rice stem borer control is by trapping mass (mass arrests): 9-16 traps / ha. B. Sporadic attacks region
How to control than the use of insecticides that can be applied to suit local circumstances.
Spraying with insecticides based on the observation, that if found on average> 1 group of eggs / 3 m2 or intensity of the rice stem borer attack (sundep) average of> 5% and outs of the average 10% no later than three weeks prior to harvest. REFERENCES Anonymous, 2007, issue of nutrient field pest in rice research and development center crop Anonym, 2007, Technical Guidelines for Pest and Diseases, Center for Food Crops Research and Development
CONDITIONRice stem borer is an insect pest in rice crops in diverse ecosystems. In Indonesia and the intensity of borer attack fluctuate widely between years, however, a major pest that attacks the widest among insect pests of rice.TYPES stem borerThere are 6 types of rice stem borer, namely:1. Winches Trunk White Rice (Tryporyza innotata)2. Yellow Rice Stem winches (Scirpopaga incertulas)3. Winches Batang Padi Pink (Sesamia inferen)4. Rice Striped Stem winches (Chilo supressalis)5. Rod Rice Black-Headed winches (Chilo polychrysus)6. Batang Padi winches Eye limbed (Diopsis macropthalma)Of the six species are only four species is commonly found or pests untama cause, rice stem borers and black head glistening rice stem borers are rarely found because of the low population. Each rice stem borer species have different properties or characteristics in the spread and bioecology, but almost the same in the way of attacking or broaching rice plants and the damage they cause.Below is a stem borer life cycle DAMAGES attack symptoms on vegetative stage led to the demise of the middle and called sundep shoots. Yield losses due to rice stem borer attack at vegetative stage is not too big because the plant is able to compensate by forming new tillers. Simulation based on vegetative stage, plants are still able to compensate for the damage caused by borers to 30%. Symptoms at stadia generative cause appears white and empty panicles are called outs loss in yield caused any symptoms outs percent range 1-3% or an average of 1.2%.A. Endemic areas Attacks1. Cropping pattern setting
Simultaneous planting
Crop rotation with crops instead of rice.
Nursery grouping intended to facilitate collection efforts borer egg mass.
Setting the time of planting in the early rainy season by flying moths or larvae populations in rice stubble.
2. Physical and Mechanical Control
Penyabitan physical way is to plant as low as possible to the surface of the soil at harvest
Mechanical means can be done by collecting groups of rice stem borer eggs in nursery 3. Biological Control
Utilization of natural enemies of both parasitoids.
Conservation of natural enemies by avoiding insecticide spray application. groups of eggs were taken from plants collected in a container and left the hatch open, so that if there is an egg parasitoid could take to the field as part of conservation.
4. Control of Chemicallygroup of eggs was found on average more than one group of eggs / 3 m2 or the average intensity of attack:> 5%. When a group of egg parasitization rate in the early phase of vegetative> 50% do not need the application of insecticides.
Granular insecticide use in the nursery is done if there is land surrounding the crop being harvested at or before the 7 days before planting. Granular insecticides on pertanman given chiefly at vegetative stage. In the generative stadia sprayed with an insecticide application.
Insecticides containing carbofuran granules is the trade name, Dharmafur 3G, Curaterr 3G, 3G Indofuran, Tomafur 3G, 3G Sprinkles, Petrofur 3G, 3G Hidrofur, insecticides containing the active ingredient fipronil that Regent 0.3 G. Liquid insecticides containing fipronil is the trade name Regent Rope 50SC and 25 EC, insecticide containing the active ingredient dimehipo, Bisultaf, Monosultaf the trade name Stopgrek (SHS) Stuntman 500 ml, with the trade name Bancol bensultaf 50 WP, 5. Use of Sex Pheromones
Used to determine the species and monitor population fluctuations stem borer moths were caught by.
Can be used to determine the time of application of insecticides on rice yellow stem borer (When the pheromone catch as many as 100 birds / week).
Can be used for white rice stem borer control is by trapping mass (mass arrests): 9-16 traps / ha. B. Sporadic attacks region
How to control than the use of insecticides that can be applied to suit local circumstances.
Spraying with insecticides based on the observation, that if found on average> 1 group of eggs / 3 m2 or intensity of the rice stem borer attack (sundep) average of> 5% and outs of the average 10% no later than three weeks prior to harvest. REFERENCES Anonymous, 2007, issue of nutrient field pest in rice research and development center crop Anonym, 2007, Technical Guidelines for Pest and Diseases, Center for Food Crops Research and Development
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