What exactly is the concept of reducing pesticides in orchid gardens?

1. Sterilize and replenish microbes: Since we know that plant growth and health require microorganisms as symbiotic partners, yet in our orchid gardens and greenhouses we constantly apply pesticides, indiscriminately killing pathogenic fungi while also wiping out all beneficial microorganisms. Neither good bacteria nor bad bacteria can withstand highly toxic pesticides, creating a temporary vacuum in our orchid gardens. When the pesticide's efficacy declines, the pathogenic fungi still present in the surroundings seize the opportunity and, with their rapid reproduction characteristics, quickly recolonize the orchid pots that have been cleansed by pesticides and left without competitors. Thus the pathogenic fungi proliferate rapidly with community dominance, and disease reappears even faster, leaving no choice but to spray pesticides again. This happens over and over, creating a vicious cycle of increasingly intense pesticide spraying - this is the common ailment of modern agriculture. If, when pesticide efficacy declines, we apply large amounts of beneficial microbial communities (such as Lan Shijie Mandian No. 18 or the enzyme liquid fertilizer Xiduolan, etc.) to take the lead in colonizing the growing medium after pesticide cleansing, resisting the re-entry of pathogenic fungi with absolute dominance, then no matter how strong the pathogenic fungi are, they must work quite hard to conquer and occupy this orchid pot already full of beneficial microorganisms, and to develop to the point of symptom recurrence would require even more time. In this way, the time for disease recurrence is naturally prolonged. For orchid enthusiasts who have always sprayed every ten days, after starting the sterilize-and-replenish-microbes routine, on the tenth day first check whether spraying is truly necessary. If spraying can be delayed by one day, then thereafter switch to spraying once every eleven days. Each time, observe first before spraying, and delay whenever possible. In this way, the spraying cycle gradually lengthens, from eleven days to two weeks, from two weeks to three weeks, one month, half a year, one year, and finally our orchid gardens naturally become free from pesticides. 2. Microbial community dominance: To cultivate large amounts of beneficial microorganisms in planting pots, one must first prepare an organic hotbed suitable for microbial survival and reproduction. The planting pot must not only contain the microorganisms' food - organic matter - but also attention must be paid to the porosity of the planting medium and its water retention capacity to provide the oxygen and moisture needed for microbial survival. Then, comprehensive microbial communities (Qiqijie Mandian No. 18) are regularly supplemented to maintain the dominance of beneficial microbial communities against the invasion of pathogenic fungi, exerting their fertilizer-producing and disease-suppressing effects. 3. Antagonism: Actinomycetes (Actinomvces) can secrete various antibiotics, Pseudomonads (Pseudomomas) can secrete various disease-suppressing substances, lactic acid bacteria (Lactobacillus), yeasts (Sacobaromyces), Trichoderma (Trichoderma)... and so on, all secrete disease-suppressing substances. As long as these antagonistic microorganisms can be properly cultivated in orchid pots, they will constantly secrete various disease-suppressing substances at the orchid roots to suppresspests and diseasesfrom growing, and naturally the demand for pesticides will also decrease accordingly. 4. Strong plants: When orchid plants are healthy and strong, the disease incidence naturally decreases. It is like two children playing outside together in wind and rain; after returning home, one has a runny nose while the other is fine - the same harsh environment, yet different disease responses. The operation of organic farming methods must effectively provide good growing conditions to cultivate robust plants, thenpests and diseaseswill naturally decrease, and there is no need to rely on pesticide application. 5. Reduce disease sources: Avoid using raw fertilizers such as raw chicken manure, pig urine, cow urine, human excrement, and the like, to eliminate environments where pathogenic fungi andpests and diseasesmultiply.