A Review of Huanglongbing (Citrus Greening) Management in Citrus Using Nutritional Approaches in China

Fig. 2. Micronutrient product (containing boron, zinc, magnesium, selenium, and calcium) used in a plantation in Gong Cheng county, Guangxi province.



Image from Plant Health Progress article:
A Review of Huanglongbing (Citrus Greening) Management in Citrus Using Nutritional Approaches in China