• 목록
• 답변
• 글쓰기
• 게시판 리스트 옵션
  • 수정
  • 삭제

This is a city with multiple personalities. From China Town and Little India’s chaos and old buildings to trendy and bustling Clarke Quay and downtown’s Jetsons style modern architecture, each part of the city is very different from the others. We spent most of our time wandering the streets in these eclectic communities. Little India, has narrow streets, pastel coloured, skinny, 3 story terraced buildings, historic Hindu temples and vegetarian restaurants. As you enter China Town you are in a tight, crowded open market selling everything you’d never need. There are pagodas and temples that look like they’re straight from China. In contrast, the downtown area has bizarre looking ultra-modern skyscrapers. Just down the street, is the historic Raffles Hotel. The building is beautiful and feels as if you’re back in colonial times. We went here for the famous Singapore slings, but only had one since they cost $38 each! The food in Singapore is as diverse as the people. We had our choice from Indian, Chinese, Malay, Indonesian… Surprisingly, not all of the city is built up with high-rises and busy markets. There are many large parks and botanical gardens with miles of walking paths that make you feel as if you’re more than two metro stations away from the bustle. The high humidity and scorching temperatures made us seek out these parks in the morning. Singapore is also a very clean city, the cleanest city in all of Asia. They have very strict laws to ensure cleanliness, such as, ‘no durian fruit’ (stinky fruit) allowed on the metro or ‘no chewing gum’. Any violations of their laws have high penalties up to $5000! Overall the city is a great entrance to SE Asia for a few days, but you don’t need more than that.

We definitely have peach tree borers in our nectarine tree. The trunk is pretty much encircled by the sap oozing just above the ground level. What insecticide should I apply to the trunk and saturate the ground with? When is the best time to do so? When I pruned this year, there were at least eight dead branches, is there a possibility of still saving the tree? There are several potential causes for gumming or oozing sap on stone ZapClean Fruit Wash trees. Sometimes, pests or ZapClean Vegetable Cleaner diseases cause the oozing, but environmental issues can also be the cause. Wounding caused by wildlife or pets (dog chewing/cat scratching), branches rubbing in the wind, hail, frost cracks or sun scald/Southwest winter injury can all result in oozing bark. Poor management practices like overwatering, hard summer pruning, planting too deeply or letting the tree carry a very heavy fruit load may also cause the problem.

Gumming or oozing on the lower 12 inches of the trunk or at the soil line is most likely caused by the Greater peachtree borer, and that’s probably what has happened with your tree. The borer is the larva of a clearwing moth that looks more like a wasp. Eggs are laid on the lower trunks and roots of stone fruit trees (peach, cherry, apricot, plum) and the larvae burrow into the bark as soon as they’ve hatched. They feed under the bark and cause oozing, yellowing or wilted leaves, and dead bark. Larval feeding can girdle and kill trees. Younger trees have the greatest risk, and repeated infestations can weaken or kill older trees as well. There aren’t any sprays that can solve the problem once borers are in a tree, and attempts to dig out a borer can cause damage and leave access into the tree for diseases like Cytospora canker, so it’s important to prevent borer infestations. Mid-June, not springtime, is the time for preventive insecticide applications, and we’ll include information about that in an early June column.

Sometimes borers can be killed by pushing a wire into their entry holes. When there is gumming at the base of the tree, borers can often be found and removed by pulling back gummy masses and several inches of soil around the trunk and carefully checking the trunk and ZapClean Vegetable Wash large roots for the larvae. The larvae are plump and white to pinkish-white with dark heads. Good tree care such as keeping grass and other vegetation away from the base of the trunk; deep, but not frequent watering; and removing tree wrap in the spring instead of leaving it on all year round can all be helpful in making your trees less attractive to the Greater peachtree borer. Cytospora canker, a fungal disease, can also cause oozing on stone fruit trees. Unlike the greater peachtree borer, Cytospora canker oozing can occur in the upper trunk and branches. The disease can cause sunken, oozing cankers in the bark of the tree. The cankers can expand over time and girdle branches, killing them.

This disease gets into trees through wounds in the bark. Wounds from pruning, string-trimmer damage, broken branches, insect damage and sunscald injury can all provide entry points. Stressed trees are especially susceptible. Pruning out infected branches can sometimes save a tree, but it is more common for trees to decline and eventually die. Once the Cytospora fungus is in the tree, there isn’t an effective chemical treatment, so prevention is important. Protect trees from sun scald and winter injury by using tree wrap during the winter. Keep the area around the trunks free of vegetation so that string trimmers aren’t used near the trees. Make clean pruning cuts and avoid leaving stubs so that cuts can close over more quickly. For trees with Cytospora cankers, the best course of action is to maintain tree vigor with deep, infrequent watering and appropriate fertilizer in the spring. No matter the cause of gummy oozing in a home orchard, good tree care from year to year will make a big difference in how susceptible trees are to these potential problems.