1. Aphids are sap-sucking insects related to psyllids, whitefly, scale insects and mealybugs

2. The use of the mealybug Dactylopius tomentosus in eradicating the prickly - pear cactus in South India , to which we have already referred , is another instance of biological control .

3. Asian Citrus Psyllid; Citrus cutworm; Citrus leafminer ; Cottony cushion scale; Fuller rose beetles; Glassy-winged sharpshooter; Hoplia beetle ; Katydids; Leafrollers; Mealybugs; Mites Citrus bud mite; Citrus …

4. Bacilliform virus (RTBV), which resembles badnaviruses in having a dsDNA and Bacilliform shape,but differs in the genome organi-zation [an extra open reading frame (ORF)] and vector transmis-sion (by leafhopper, as opposed to mealybugs in the case of badnaviruses)