Post by account_disabled on Dec 26, 2023 1:03:37 GMT -6
During this period there will be high humidity in the air and rain. Department of Agriculture Warn strawberry growers to watch for mite infestation in two areas during the strawberry production period. Have farmers observe strawberries on the underside of leaves to find larvae and adults of two-spotted mites sucking sap. Makes the leaf surface in the area where the mites are destroying it look rough. The underside of the leaf turns reddish-brown. The upper surface of the leaf above the area where the mites are infesting can be seen as a small white spot. widely distributed In cases where the destruction is more severe Small white spots will gradually spread over a wide area. Until causing the entire leaf to turn pale yellow and the leaves to fall, which may cause the strawberry plant to stop growing. and productivity can decrease When the infestation mites are in the underside of this leaf, the population becomes more dense.
The mites create webs that weave between the leaves and shoots of their host plants. To wait for the wind to blow away the mites clinging to the fibers to fall on the leaves or tops of other plants that have more Email Marketing List abundant food. Guidelines for prevention and elimination Farmers must clean and remove weeds in their plots regularly. And you should not plant vegetables interspersed with strawberry planting rows. Because it will add two host plants for the mites. If survey finds an outbreak, use biological methods to release predatory mites. Since the beginning, two mites have been found infesting the underside of strawberry leaves (1-2 mites per leaf), at a rate of 2-5 mites per plant, or approximately 5,300-13,300 mites per strawberry plot, area 1 ngan, and should Release it periodically Approximately 2 weeks apart.
In cases where the number of mites in two spots is higher than 5-20 per leaf, release the predator mites at a high rate of 30-40 per plant, 3-4 times. The predator mites will be able to control the outbreak. You can get two spots. In the case where the population of mites is found to be increasing, it is still increasing. Farmers need to use mite-killing substances to prevent and eliminate mites in two areas for good results, such as phenpyroximate 5% SC at the rate of 20 milliliters per 20 liters of water (this substance can be used in cases where Predator mites) or Proparcite 30% WP, rate 30 grams per 20 liters of water (should be sprayed at the specified rate and when the sun is not shining because it will burn the young leaves) Spray the substance all over the plant. especially under the old leaves and re-spray as necessary
The mites create webs that weave between the leaves and shoots of their host plants. To wait for the wind to blow away the mites clinging to the fibers to fall on the leaves or tops of other plants that have more Email Marketing List abundant food. Guidelines for prevention and elimination Farmers must clean and remove weeds in their plots regularly. And you should not plant vegetables interspersed with strawberry planting rows. Because it will add two host plants for the mites. If survey finds an outbreak, use biological methods to release predatory mites. Since the beginning, two mites have been found infesting the underside of strawberry leaves (1-2 mites per leaf), at a rate of 2-5 mites per plant, or approximately 5,300-13,300 mites per strawberry plot, area 1 ngan, and should Release it periodically Approximately 2 weeks apart.
In cases where the number of mites in two spots is higher than 5-20 per leaf, release the predator mites at a high rate of 30-40 per plant, 3-4 times. The predator mites will be able to control the outbreak. You can get two spots. In the case where the population of mites is found to be increasing, it is still increasing. Farmers need to use mite-killing substances to prevent and eliminate mites in two areas for good results, such as phenpyroximate 5% SC at the rate of 20 milliliters per 20 liters of water (this substance can be used in cases where Predator mites) or Proparcite 30% WP, rate 30 grams per 20 liters of water (should be sprayed at the specified rate and when the sun is not shining because it will burn the young leaves) Spray the substance all over the plant. especially under the old leaves and re-spray as necessary