Plant essential oil, mineral oil, organosilicon, what's the difference between these additives? (2)


Mineral oil vs organosilicon vs orange peel essential oil


1. Different functions and mechanisms


Use: mineral oil and orange peel essential oil can be used as insecticide and bactericide in high concentration, and as auxiliary in low concentration. Organosilicon is mainly used as pesticide additives, not as insecticides and fungicides alone.


(1) as pesticide


Mineral oil, as a pesticide, mainly through physical asphyxiation, block the stomata of insects, destroy the cell wall of bacteria, interfere with respiration, so as to achieve a certain effect of disease prevention and insect control.


The essential oil of orange peel mainly dissolves the wax layer on the surface of the pest and the phospholipid layer of the spore of the pathogen through limonene to achieve the effect of disease prevention and insect control.


(2) as pesticide assistant


Mineral oil is used as a pesticide oil adjuvant. It mainly reduces the surface tension and contact angle of pesticide spray droplets on the leaf surface of plants, so that the products can get better wetting, spreading and adhesion, improve their permeability and rainwater scouring ability, and thus improve their efficacy.


Orange peel essential oil mainly uses the strong permeability and expansibility of limonene to make conventional pesticides quickly penetrate and absorb, and improve the control effect.


Organosilicon has good wettability and permeability, which can make the liquid medicine spread rapidly on the leaves, increase the contact area between the liquid medicine and crops and insects, and improve the effect of insect control and weeding. In addition, it can also promote the penetration of the internal absorption agent through the pores, improve the rain erosion resistance, and reduce the amount of pesticide use and water consumption per unit area, reduce pesticide pollution, reduce pesticide residues, save time, labor and medicine.


2. Safety comparison


(1) although mineral oil is a kind of mineral pesticide with low toxicity, broad-spectrum control and environmental friendliness, its improper use (such as under high temperature) is very easy to lead to the occurrence of pesticide damage. At the same time, its use in the later stage of fruit growth will also bring the problem of fruit surface pollution.


In addition, the mixed use of mineral oil and pesticides prone to drug damage will aggravate the production of drug damage. For example, azoxystrobin has strong permeability. If mineral oil is added, the risk of drug damage will be greater.


(2) organosilicon has a strong destructive effect on the wax layer of plant leaves, which will lead to the decomposition of cuticle of leaf epidermis cells, reduce the water holding capacity of plants, and easily lead to the damage of plant cells.


And in the high temperature environment, or when the wax of the leaves is thin, adding organosilicon is easy to lead to the production of drug damage.


In comparison, orange peel essential oil is extracted from nature and plants, which is environment-friendly, safe and residue free, safe for natural enemies of pests, ladybug, bee, etc., and can be mixed with most pesticides. The highest security.


3. Comparison in use


(1) the essential oil of orange peel is safe for crops. It can be used in flowering, young fruit, expanding fruit and dormancy.


(2) there are many limitations in the use of mineral oil, which can not be used in the flower bud, young shoot stage and turning color stage of fruit trees. Especially in citrus, one is easy to cause drug damage, the other is to affect the citrus color.


Orange peel essential oil has obvious advantages over mineral oil in garden cleaning, which can effectively prevent the yellow leaves caused by the use of mineral oil. It is safer than mineral oil in garden cleaning.


(3) organosilicon is mainly used as auxiliary agent in use. Although many agents will have synergistic effect after adding organosilicon, not all agents can add organosilicon auxiliary agent.


For example, some pesticides have already added some surfactants in the production process, and if these pesticides are used, adding organosilicon and other additives again may cause harm. For example, azoxystrobin, dimethylpentylene, etc., if they are mixed with organosilicon auxiliaries, it will cause harm.


Attention shall be paid to the use of organosilicon: the use amount must be strictly in accordance with the instructions, and do not increase the concentration at will, which is very easy to cause drug damage. Avoid high temperature application. When organosilicon is diluted according to the corresponding multiple and mixed with the agent, the mixing steps are generally as follows:


First, injecting half a bucket of water into the sprayer, then pour the silicone into the sprayer, shake the sprayer, make the silicone mix evenly, pour the medicament into the sprayer, and fill the sprayer with water.


4. Price cost comparison


The safety of orange peel essential oil is higher, but the price is more expensive and the cost is higher. The cost of organosilicon and mineral oil is lower and the price is cheaper. In practical application, we can choose the right products according to the characteristics of different products!


From Citrus Industry Alliance