How about straw hat LED Lamp Beads and patch lamp beads? Led Light Board Patch,Purple Led Lamp Beads,Custom Led Board Patch,Led Strip Patch 2835 Dongguan XINYUDA Technology Co., Ltd. , https://www.gdxige.com
2. According to different tree species and different varieties, different kinds of apples, pears and other tree species sensitive to copper ions should be used. Double or multi-type Bordeaux mixture should be used; peach, apricot and plum are more sensitive to copper ions. Tree species, do not apply Bordeaux mixture; vines sensitive to calcium ions and susceptible to phytotoxicity, should reduce the amount of lime, can apply half or a small amount of Bordeaux mixture.
Third, pay attention to the impact of climatic conditions Spraying Bordeaux mixture should be carried out in clear weather without dew, not sprayed when the dew is not dry and rainy days. Cool summer spray should avoid the hot sun in the afternoon, and increase the amount of lime as appropriate during the rainy season.
Fourth, a reasonable mix of Bordeaux mixture can not be mixed with stone sulfur mixture, thiram, bacteriophage, cypermethrin and so on. If the Bordeaux mixture is sprayed, it must be separated by 20-30 days to spray the sulphur sulphur mixture; after spraying the sulphur mixture, it is necessary to spray the Bordeaux mixture at least 10 days apart.
Author: Zhaihong Min
Source: Shandong Science and Technology Information News
1. From the appearance: straw hat shaped LED lamp beads are straw hat shaped round (hence the name), with long pins; Most SMD LED Lamp Beads are rectangular, with no pins or only very short pins (a kind of manual SMD high-power lamp beads are also round, except those with short leads);
2. From the light emitting point of view: the angle boundary of straw hat lamp bead is obvious, and the patch lamp bead is not obvious;
3. From the perspective of soft light: the light of straw hat lamp beads is more dazzling, and the light of patch lamp beads is softer;
4. From the perspective of packaging lens: the lens of straw hat lamp bead is hard and transparent epoxy resin, and the patch lamp bead is mostly soft and transparent silica gel;
6. From the perspective of power: the power of straw hat lamp beads is small, and the power of more than 0.5W is less (because it is not easy to spread heat). The lamp bead power of the patch can be larger. For example, the 5050 packaged chip lamp beads can achieve a 3W power, but the straw hat shaped lamp beads cannot.
First, the application period Bordeaux liquid is a protective fungicide, should be used before the onset of fruit trees, the effect after the onset is not very satisfactory. It is not suitable to apply the apple tree within one month after the flower falls and the fruit is near the maturity stage. If necessary, some organic fungicides such as carbendazim and methyl thiophanate may be sprayed.
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