Topics in Subtropics

U.S. EPA proposed changes to rodenticide labels for agricultural use: opportunity for public comment Roger A.

If the citrus fruit has a swollen stem end, it's called "sheepnose" and it's a swollen nipple or blossom end, it's also called "sheepnose". A swollen nipple is much more common. The fruit also tends to be coarse and the skin thick.

This odd pattern that has shown up on polyethylene irrigation tubing was sent in by an observant Santa Paula grower. The fruit trees were covered with aphids and there was sooty mold growing on the honey dew dripping onto the tubing.

Salts and Soil pH are two of the great management problems we have with subtropical crops like avocado, citrus, passionfruit, coffee and even evergreen blueberries when grown in California. In the western Cascades there are also soils dominated by carbonates and waters by bicarbonates.

Argentine Ant is the great protector of many pests found on plants. Without the Argentine, many pests would not be so much of a problem. In many crops, like cherimoya and passionfruit, mealy bug can become so severe that fruit will stop growing and fall off the tree.