Plant diseases

Overripens, lack of pollination, high humidity, disease, stress, or nutritional deficiencies can all cause fig fruit to fall from the tree. When the fruit becomes overripe, it may fall off prematurely. The fig may drop if it was not properly pollinated. 

Due to fungal infections, high humidity can cause fruit to drop. If the tree is infected with a disease (such as fig rust, Botrytis, or powdery mildew), it may drop its fruit. 

Finally, a lack of nutrients in the soil, particularly calcium and magnesium, can cause the tree to drop its fruit. Pruning mistakes also contributed to fig drop.

Cinnamon is used as a fungicide to treat damping off disease in plants by inhibiting the growth of fungi responsible for the disease. The antimicrobial properties of cinnamon are due to its essential oil, which contains compounds such as cinnamaldehyde and eugenol. 

When cinnamon is applied to soil, it creates a protective barrier around the roots of the plant, preventing the fungi from infecting the seedlings. Additionally, cinnamon can also boost the plant’s own defense mechanisms, making it more resistant to disease. 

To use cinnamon for damping off disease, simply sprinkle cinnamon powder on the soil surface around the seedlings or mix cinnamon into the soil before planting.

Ergot disease in Pearl Millet is caused by the fungus Claviceps fusiformis, which infects the ovaries of the plant and replaces the seed with fungal structures called sclerotia. The sclerotia contain toxic alkaloids that can cause harm to both humans and animals when consumed.

The first  symptom of the disease  is exudation of  pinkish or light  honey-coloured small mucilaginous droplets of sticky fluid  called  ‘honeydew’ oozing out from infected  spikelets. 

The disease reduces seed germination and yields, leading to decreased crop productivity. In addition to these direct effects, Ergot disease can also weaken the plant and make it more susceptible to other diseases and pests, further reducing crop health and yield.

Club root is a soil-borne fungal disease that affects mustard and other brassica crops. The disease is caused by the fungus Plasmodiophora brassicae, which invades the roots of the plant and causes the roots to become swollen and distorted, leading to a condition known as “clubbing.”

Symptoms of club root in mustard crops include stunted growth, wilting, yellowing of the leaves, and a reduction in yields. In severe cases, the roots of the plant can become so distorted that the plant is unable to absorb water and nutrients from the soil, leading to plant death.

To control club root in mustard crops in a suspect or infected field, incorporating hydrated lime (1,500 lb/A) at least 6 weeks before planting, whether pH is neutral or alkaline, gives additional disease control. Chemical controls, such as the use of fungicides, can also be used to control club roots.

It is also important to maintain soil pH levels between 6.0 and 7.0, as club root is more severe in acidic soils. Additionally, avoiding overwatering and improving soil drainage can help reduce the risk of club roots infection.

An infection caused by a virus called tobacco mosaic disease that affects not just tobacco plants but also tomato and pepper plants and other Solanaceae family members. The Tobacco Mosaic Virus (TMV), which is easily spread from plant to plant through contact with contaminated tools, hands, or plant components, is what causes the illness.

Yellow-green streaks and mottling on the leaves, stunted growth, and lower yields are signs of this disease. Infection on young plants results in stunted growth, malformation, distortion and puckering of leaves. Darkgreen blisters and sometime enations (leafy growth) appear on the dorsal side of the leaf.

Since there is no treatment for tobacco mosaic disease, maintaining excellent hygiene and taking precautions to prevent infection are the best ways to manage the disease.Old stems and leaf trash of affected plants buried in the soil are the other sources of infection and spread. Additionally, planting disease-resistant varieties and removing infected plants from the garden can help reduce the spread of the virus.