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The tobacco mosaic virus is very fatal for many plants, like tomato, pepper, eggplant, tobacco, spinach... adnd the virus infection causes light and dark green mottled areas on the leaves. The dark green areas tend to be somewhat thicker than the lighter portions of the leaf. The leaf mottling is seen more easily if the affected plant surface is partially shaded. Stunting of young plants is common and often is accompanied by a distortion and fern-like appearance of the leaves. Older leaves curl downward and may be slightly distorted. Certain strains of the virus can cause a mottling, streaking and necrosis of the buds. Infected plants are not killed, but they produce poor quality buds and low yields.
Solution - Virus diseases cannot be controlled once the plant is infected. Therefore, every effort should be made to prevent introduction of virus diseases into the g
Spider mites are not insects but are more closely related to spiders. Most spider mites have the ability to produce a fine silk webbing. They have tiny mouthparts modified for piercing individual plant cells and removing the contents. This results in tiny yellow or white speckles. When many of these feeding spots occur near each other, the foliage takes on a yellow or bronzed cast. Once the foliage of a plant becomes bronzed, it often drops prematurely. Heavily infested plants may be discolored, stunted or even killed. Web producing spider mites may coat the foliage with the fine silk which collects dust and looks dirty.
Early detection of s
Plants is very sensitive to temperature, no matter indoor grow or outdoor grow, when the temps are so high, low humidity or light too close the plants, the plants will have heat stress problem.
Sign of Heat Stress
Plants leaves will become yellow or brown spot, When the heats gets too high, the edges of the serrated leaves will begin to curl up and the leaves will begin to “cup”
Buying a temperatur
Iron is a necessary nutrient that help plants grow tissues.
Iron is needed to help enzymes function well or for chlorophyll to synthesize properly.
Signs of Iron Deficiency
- Yellowing outside the veins of the plants leaf,veins remain green
- Young leaves show yellow from opposite tips of the leaf
- Slow growth
- Bigger leaves will start to yellow between the veins of the leaf
- Leaves will start to show signs of burnt tips
How to know your plants if overwatering or underwatering? Is there some way to distinguish and avoid this problems? Yes of course.
The difference between overwatering and underwatering:
- The soil is constantly wet
- The leaves of the plant turn brown and curl down
Zinc is responsible for enzyme function and chlorophyll in the plants.
Zinc affects the strength of all parts of the plant such as the stems, branches, stalks and leaves.
Signs of Zinc Deficiency
Yellowing between the veins, in new and young leaves
New Leafs are small and thin and appear twisted
New leaf growth is pale yellow-green
Stems fail to grow and stretch leaving minute leafs
The tips of leaves appear burnt
Magnesium is a mobile element,Magnesium deficiency usually starts in the middle of the plant and spreads to the younger leaves. Leaves turning yellow, or even white, with the veins remaining dark green is the best indicator of Mag deficiency.
Magnesium can be easily absorbed by plants when the PH range of is 5.0-7.0 ,also other factors may reduce or lock-out the mag uptake, such as a permanent humidity, low temperatures, or acid and cold substrates.
As Calcium,magnesium deficiency usually appear together,so usually get Cal-Mag supplement
First adjust the PH level:In soil, magnesium is best absorbed by the roots in the 6.0 - 7.0
Calcium is important for the plant's growth,it helps provide structure to the plant,especially under LED growing.
Signs of Calcium Deficiency
Upper leaf issues show spotting first
Lower leaves curl and twist
Yellow, brown spots appear on leaf and tips
Train your plants part 1:Bending & Securing Parts of the Plant
Low stress Training(LST) Bend tall stems down and away from the middle of the plant as it grows so the plant takes on a more flat and wide shape. You should start this when the plant is still a seedling,because the young stems will be flexible.
Supercropping- If your plants too tall and difficult to bend,this will be your choice."Soften up" the stem first before bending it at an extreme angle. Supercropping can be very helpful towards wrangling an out-of-control plant, and it has a few other benefits too because it can stress the plant in a "good" way
Pros and Cons of different grow light
Light is very important for every plants, someone would like to use HPS, someone would like the natural sun light or led grow lights, so what the difference?
Pros of HPS Grow Lights
- HPS are the most efficient type of grow light
- HPS grow lights are the most efficient and the best for the flowering stage.