DENDROLOGY

TREE DISEASES AND PESTS

COMMON TREE DISEASES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the result of magnesium deficiency in a plant
A
Cellulose walls are strengthened
B
Increased growth
C
Yellowing of the leaves
D
Stunted growth
Explanation: 

Detailed explanation-1: -Symptoms: Yellowing between the leaf veins, sometimes with reddish brown tints and early leaf fall. Magnesium deficiency is common in tomatoes, apples, grape vines, raspberries, roses and rhododendrons.

Detailed explanation-2: -Sulphur. Sulphur is a component in the formation of chlorophyll. Deficiencies result in yellow leaves and stunted growth.

Detailed explanation-3: -Yellow areas between the leaf veins. Necrosis. Defoliation of lower leaves. Reduced fruit yields. Purpling areas on tomato plants.

There is 1 question to complete.