Peach little borer should be early defense

Peach borer is also known as peach moth, apple borer, peach leaf roll moth, etc., commonly known as "ringworm", is a lepidoptera, fruit moth family. The main damage is apples, peaches, pears, dates, hawthorn and other fruit trees. The worms occur one to two generations per year in Hebei, and the old mature larvae in the soil layer around the host trunk 3 to 15 cm deep in winter. Overwintering larvae have been unearthed since late May and have been unearthed in the middle or late June. After unearthing, they are mostly found in shady areas under the canopy (such as near rocks and clumps near the trunk, and exposed roots and weeds on the ground. Beside the roots) Do the summer tricks and dissolve them. The overwintering adult emerges from June to July, and in late June it is the emergence period. After emergence, it lays eggs 1 to 3 days. From July to August, it is the first generation larval larvae, and it is also the larvae of this generation. The duration is 22 to 29 days. The first generation of adults occurs in August and the middle of August is the peak period. The second-generation egg-generation period is roughly the same as that of the first-generation adult, and the peak period is in the middle-late August. The second generation of larvae in the fruit within the duration of 14 to 35 days, the larvae of the fruit removal period is the earliest in late August, the prosperous period in late September and late in October. The larvae were successively matured, dehydrated and plucked into the soil to make wintering.

Because the peach fruitworms are staggered from generation to generation, they have brought certain difficulties in prevention and control. Now it is a period of overwintering of the peach borer. It should seize the opportunity to control and control the insect source, and it has a multiplier effect.

1. Ground spraying control: After the rain from late May to early June, sprinkle 5% phoxim granules or 500 times liquid phoxim solution within a radius of 50 cm from the neck of the trunk, and then use a hoe. Turn the soil upside down so that phoxim is buried under the soil to minimize loss of phoxime phosphorescence decomposition failure. If you cover it with a wide mulch film, it will work better.

2. Control of poisonous soil on the ground. Prior to the excavation peak of the peach borerworm larvae, mix 15% Losebben granules 2 kg or 50% phoxim EC with 15-25 kg of fine soil, and spread evenly on the ground below the trunk of 1 mu of land. The soil is mixed with the soil with a handkerchief and leveled. The use of Le Sibu particles can be done once; phoxim should be applied 2 to 3 times.

3. Lacing straw rope trapping. Before the overwintering larvae were unearthed, two or three laps were tied around the base of the trunk with straw ropes to trap the soil larvae into the internal circulation and periodically inspect and kill them.

4. Bagging protection. The fruit is bagged prior to adult spawning.

5. Spray control. After entering the month of July, monitoring and forecasting will be done. Chemical control will be conducted during the hatching period of eggs and the early stage of hatching of larvae. Each spray should be sprayed within 3 to 4 days and sprayed once a week. The available pharmaceuticals are: 48% of Loester Ben EC 1000-1500 times, 50% Cascade Pine EC with 1000 times, 20% cypermethrin EC 2000-4000 times.

6. Remove the fruit. During larvae pod damage (before larvae are de-fruited), the orchard is inspected, the insects are removed, and the larvae are killed. Picking the fruit once every 10 days can effectively control the amount of this insect.

7. Temptation. Blacklights are placed in the field or adult insects are seduce using Peach Moths attractants.




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