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Early Blight & Late Blight | Different Symptoms and causes

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Early blight and late blight are the most common diseases on tomato & potato. They usually take huge losses to farmers. Although the names of the two diseases are the only one-word difference, some growers do not know exactly about the difference between early blight and late blight.

First, we need to how to recognize their symptoms.

Difference between Early blight & Late blight

Causes

Early blight is caused by two different closely related fungi, Alternaria tomatophila, and Alternaria solani, which lives in soil and plant debris.

Late blight is caused by Phytophthora infestans, a microorganism which prefer moist and cool environments.


Conditions

Early blight

A suitable temperature is 24~29°C, relative humidity is 31~96%, which is warm and humid weather.

Late blight

The optimum humidity for sporangia germination to form zoospores is to reach saturation when there are water droplets.

The optimum temperature is 12~15°C.

Above 15°C, sporangia directly invade the host, but it takes a l…

4 ways to stimulate root growth

1. Essential Nutrients Supply Phosphorus potassium &Nitrogen are the essential nutrients to support root growth for plants. They encourage plants to put down a dense collection of new roots and strengthen existing roots as they develop. Phosphorus helps establish healthy root systems at the beginning of growth. And promotes root growth, flowering, and fruit set. Potassium can thicker plants' cell walls. It will increase plants' tolerance to stresses and promote root growth. 2. Root Stimulators Hormones Auxin is a plant hormone that plays a vital role in plant growth and development as a regulator of many biological processes, especially IAA, IBA & NAA. They are the natural plant auxin’s effect on the stimulation of the root. And induce earlier root formation & development and the higher number of roots formation. They also widely used in stimulating root germination in cutting propagation. 3. Microbial Bio-fertilizer Microbial fertilizer is widely used in protecting …

How can we prevent soil salinization?

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What’s Soil SalinizationSoil salinization is one of the most vital soil problems for agricultural production. Salinization refers to the salt content of the level affecting agricultural and environmental health. Soil salinization usually occurs in arid areas, In these areas, soluble salt ions accumulate in the soil. In these areas where plant growth requires irrigation, the Evaporation and transpiration process leaves salt in the soil. At the beginning, salt will reduces soil productivity and limits crop yields. As the salt content increases, it kills the vegetation and soil microorganism. As a result, The perfectly fertile soil will became completely barren.
Why Does Soil Salinization Occur Several factors contribute to an increase in the amount of salt in the soil: Irrigation Water Quality & Volume The total amount of dissolved salt in irrigated water and its composition affect soil salt content. The more water you irrigate, the salinity of the soil will be close to the salt co…

Organic Nematode Control Bio Nematicide by Dora Agri

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Damages of nematodes Nematodes attack plant roots, stems and leaves. They are a major group of crop pathogens and cause worldwide losses estimated at about US$120 billion every year. They inhabit the soil and damage the roots of plants, weakening their ability to absorb water and nutrients. The symptoms of these damages include stunting, yellowing of plant leaves, and loss of plant vigour. Nematodes rarely killing plants directly, But they will affect plant growth and yields greatly. What’s Dora Nemaxe ?Dora Nemaxe is a biological nematicide specially for controlling nematodes based on Paecilomyces lilacinus(natural Nematophagous fungus)、Bacillus series and organic matter. The effective microbes can control nematodes and inhibit the pathogens of diseases. It parasitize and subsequently kill eggs, larvae and adults of various plant parasitic nematodes. In addition, It’s high content of organic matter greatly improve soil condition, build a good space for root growth. The nemaxe is frie…

2019 Brazil Biocontrol Latam Dora Agri Stand 32

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Dora Agri will attend Biocontrol Latam on 28-30th August 2019 in Sao Paulo, Brazil. Our booth is Stand 32, Welcome to you !
Dora Agri is leading company which concentrated on bio-control solutions on Soil remediation,Diseases control & Plant resistance. We hope to study and share frontier bio-control technology with Agronomists, Scientists, Agricultural and Crop Consultants from all over the world. And actively probe develop & promote and register for biologicals. Welcome to you !

Trichoderma Harzianum Biofungicides Control Soil Pathogens

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What’s Trichoderma HarzianumTrichoderma harzianum fungi that are present in nearly all soils. It readily colonizes plant roots and rhizosphere competent able to grow on roots as they develop. Trichoderma has quicker growth rate, and highly adaptation in bad soil condition. It is usually used for foliar application, seed treatment and soil treatment for suppression of various disease causing fungal pathogens.


Trichoderma harzianum plays an important role in soil micro-environment, diseases control &root system growth. Based on these characteristics, we divided functions into three parts: For Soil ConditionOutstanding soil adaptability in soil, control soil borne pathogenes and help soil build a stable granular structure, which is porous & full of nutrition. Preserve moisture and fertility. Alleviating soil secondary-salinization, and acidification.
Reduce heavy metals & organic pollutants. For Diseases ControlTrichoderma harzianum can eliminate damaging fungal pathogens, such as P…

What is mycorrhizae and why is it important?

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There is no doubt that mycorrhizae fungi play the important role in plant growth. They help build soil aggregate structure to provides plant roots with a better & healthy environment to healthy and strong growth. Their symbiotic relationship with plants helps them access extra water and nutrients source in soil.


What’s Mycorrhizae Mycorrhizae is symbiotic association between a fungus and a plant. The term mycorrhizae refers to the role of the fungus in the plant’s rhizosphere, its root system. Mycorrhizae play important roles in plant nutrition, soil microenvironment. Mycorrhizal fungi have existed more than 450 million years, they appeared at the same time of the first plants appeared on dry land. “Myco” literally means “fungus” and “rhiza” means “root”, they form a network of filaments that associate with plant’s root system and develop a symbiotic association called “mycorrhiza”, thus plants and mycorrhizal fungi make up a single working network in nature.



How does it work A mycor…