Technical informations

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TIPS AND TRICKS 💡

Let’s discover the different types of weeding together 🌱

Here are different weeding techniques used to eliminate weeds in crops:

1. Manual weeding: this involves pulling up weeds by hand or using tools such as hoes, weeding knives or weeding hoes. This method is effective for small areas or areas that are difficult to access.

2. Mechanical weeding: Using mechanical tools such as rotary weeders, hoes or thermal weeders, weeds can be cut, burnt or pulled up. This may be appropriate for large areas.

3. Mulching: mulching consists of covering the soil with organic materials (such as straw, dead leaves, bark) or synthetic materials (such as plastic film, mulching fabric) to smother weeds by blocking light and conserving soil moisture.

4. Thermal weeding: this method uses heat to destroy weeds. Thermal weed-killers, such as flame weed-killers or steam weed-killers, apply heat directly to the weeds, causing them to die.

5. Chemical weeding: chemical herbicides are products used to selectively kill weeds. There are selective herbicides, which specifically target certain types of weed, and non-selective herbicides, which can kill all plants. However, it should be noted that chemical herbicides should be used with caution and in accordance with the manufacturer’s recommendations.

6. Preventive weed control: this approach involves preventing weed growth by applying physical barriers or growth inhibiting products before weeds appear. Examples include the use of mulch fabrics, geotextiles or the application of preventive products.

⚠️It is important to choose the appropriate weed control technique depending on the specific situation, the extent of the infestation and personal preferences. In some cases, a combination of techniques may be required to achieve the best results.

ZOOM on a deficiency ❌ Potassium deficiencies 🌱

A distinction must be made between true deficiencies (nutrient deficiency in the soil) and induced deficiencies, when nutrients are present but not assimilable by the plant.

Potassium is responsible for regulating the vital functions of the plant: assimilation of chlorophyll, resistance to diseases, drought and cold, regulation of sweating…

SYMPTOMS 👩⚕️
Potassium deficiencies can be identified by darker leaves. Older leaves are impacted first, they are chlorotic around the edges and then wilt. In addition, turgidity is weaker and leads to more lodging.

SOLUTIONS ✅
– As a curative measure, apply potassium sulfate.
– Rebalance the soil by adding organic matter.
– Possibly apply ash (leachable) or rock powder (slow release).

ZOOM on a disease ❌ Stem rot 🌱

Stem rot is caused by the Pectobacterium carotovorum bacterium. This bacterium has the particularity to develop in cultural debris present in the soil. It spreads by water and attacks the stems of the plant as well as its fruits.

SYMPTOMS
The inside of the stems rots and becomes hollow. This causes the plant to yellow and wilt. Large black bands appear along the stems.
A wet, slimy, soft rot can be observed on the fruit that spreads throughout the organ.

SOLUTIONS
– Cultivate on well-drained soils and on well aerated plots
– Avoid irrigation on the foliage
– Do not work in the plot when the plants are wet

ZOOM ON a cabbage bacteria - Black rot 🦠

ZOOM ON a cabbage bacterium 🦠
Black rot in cabbage is caused by bacteria that attack the edges of the leaves and penetrate the plant causing black rot. This disease is considered the most destructive of cruciferous crops. It can survive in seed and crop debris for two years.

SYMPTOMS 👩
– Plant wilts and dies
– Yellow “V” shaped discolorations on the leaf margins.
– Leaf veins turn black
– Symptoms progress from top to bottom

DAMAGE PREVENTION ✅
– Use healthy seed.
– Remove crop debris after harvest.
– Do not replant cabbage for 3 years if the crop is infested.
– Choose well-drained soil.
– Do not irrigate with water from infected plots.
– Avoid walking in the field when plants are wet.
– Weed and remove crop debris after harvest.