Question

prickles grow on cactus leaves to protect them of their..... ​

Answer 1

Jawaban:

Predator,

Drought

Penjelasan:

Sekian terima kasih

Answer 2

In general, cactus enemies can be divided into two major groups, namely pests and diseases. Animals called pests are disturbances to cactus plants caused by. Diseases are disorders of cacti that arise due to causes other than disease (for example, fungi, bacteria and viruses).

1. Pests

Mite

Symptoms: The entire plant surface turns brown due to the death of the chlorophyll tissue.

Control: Mites can be controlled mechanically or chemically. Mechanically, scrub the cactus stems using a cotton swab or a toothbrush dipped in a soap solution (consisting of 1 tablespoon of detergent or dab of soap diluted with 5 liters of water). Chemically, the mites are controlled by spraying Omite 570 EC at a dose of 1-2 grams / liter of air. If the attack is too severe, the cactus is discarded.

White lice (mealybugs)

Symptoms: The cactus looks dirty because it is covered in a kind of blackish cotton-like membrane.

Control: Brush the affected part with teeth or a brush. If you want to treat it chemically, spray Basudin with a dose of 2 ml / liter of air, once every 10 days until the flea attack disappears.

Shell Lice

Symptoms: Shell lice attack the cactus by means of fluids in the plant so that the cactus turns yellow (like a wilted leaf) and eventually dies.

Control: If the attack is severe, the infection should be thrown away before infection to another cactus. However, if the attack is still early, soak the cactus in a soap solution (1 tablespoon of detergent or soap in 5 liters of air) for 15 minutes.

Scales Lice

Symptoms: The surface of the cactus stems looks dirty or dull, and over time the growth is increasingly languishing. Scale lice can also invite ants so that the cactus is surrounded by ants.

Control: Mechanically, scale lice can be controlled by cleaning the surface of the cactus stem bark using a soft brush or brush. For chemical control, spray Decis 2.5 EC with the dosage stated on the package.

Wool Fleas

Symptoms: The affected part becomes weak because the plant fluid is absorbed by the tick. Over time, the segments of the stem wither and fall off.

Control: Same as scales lice control.