標題: [生活小百科] Early Blight and Septoria Leaf Spot on Tomato Plants [打印本頁] 作者: 6t6t 時間: 2019-4-13 05:03 PM 標題: Early Blight and Septoria Leaf Spot on Tomato Plants
Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but " ]4 v. U& k8 ]4 d2 x0 Z
8 e( Q1 p; h# N3 [) b% Ccan start at any time. Infections can occur anywhere and are most severe in wet and humid areas. V- ~8 ~" d2 r* l4 a$ ZTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。 J. s6 i7 h* s1 o. W! hTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。 ' I+ I3 O; L( I' B$ h8 |How to identify Early Blight 9 A" o( J* `; m& v( p6 Z& o* A! f1 u5 g, D! B1 w2 U( S [
Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to ' h/ J, N, `2 \% F5 _6 S% \" P5 O { M3 |8 v- o$ U: G* w' b5.39.217.77:8898newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown 公仔箱論壇. b# X) l% Z& p ` I
# z9 u6 a" F9 ^TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。in color and form concentric rings, or a / C3 Y2 ^' N' P4 h! V! Z
TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。* p\" a. p* u9 g% I
bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, & s6 `( u* S6 M$ D' O公仔箱論壇 % Q, C e, ^ o( s2 E公仔箱論壇leaves may fall off. Extensive loss 3 m& X! z9 j3 o. p0 t / }( \) j% q$ D公仔箱論壇of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。) j" F5 I9 X M# e6 [6 q/ |. w
TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。& z: Q2 E, Z% L8 b
tvb now,tvbnow,bttvb" B1 V- z: _+ \
How to identify Septoria Leaf Spot # E/ ~- K2 d) J8 V" Z4 A5 A: D6 T" k% S& r- Y+ ^2 z6 `6 P
Symptoms of Septoria leaf spot also start 公仔箱論壇7 U3 }0 m' A) }+ m
, M( b: R7 m/ ]" B8 i, e2 Mtvb now,tvbnow,bttvbon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change $ E B' F7 }$ ~1 `4 U/ ptvb now,tvbnow,bttvb " }# o5 n" F/ Ishape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. % \ }; Q* a9 a8 p9 I/ G公仔箱論壇 . h' S x, ?8 r- c: K/ V: n5.39.217.77:8898Small dark spots, the fruiting bodies of the fungus + J) {6 v! V+ E. p+ M1 W) Q5 m7 O 1 ]6 w4 j% l7 q7 m {TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry + ]1 `0 ]: f* o, fTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。 4 _/ K$ s4 t& x' _2 W( Z. ytvb now,tvbnow,bttvband dead. Stems can also become infected but ! Q/ o* F0 o, @8 o: b; F1 Q& ^; u/ C
公仔箱論壇( c; d! u, p- o3 A: N; |9 c. z0 B
infection of fruit is rare. z, x2 M5 n/ H4 L, P5 ]公仔箱論壇TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。5 R( b) w( p$ P7 f; ^# K
7 R! w/ k4 X( `' ?2 K0 K. D5.39.217.77:8898plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 6 l) g3 r; K# Q' @, Htvb now,tvbnow,bttvb/ [: M- U0 E U. d( ]; L
where tomatoes were grown.tvb now,tvbnow,bttvb3 L' D9 O4 C% O+ |$ o8 K& S
TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。& I$ }( w3 v2 E+ ?# Q
Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better. 0 J& e, Z, R: r: w* ]TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of $ V& z6 F H4 `5 F. y; E) T
4 v: o8 C. \" R' P% z2 Q# F8 [/ k公仔箱論壇fungus from the soil to your ) T' l+ \( f3 A# h. I
- n, H& v% j/ a; h: E1 N6 ^TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。plants. 8 U: Q8 m' O5 P- `9 t+ x( V9 O) M公仔箱論壇 : J; }" _7 g3 a* o1 gTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Stake or cage plants to keep them 5.39.217.77:8898! I; ^) X$ t) F5 d/ U5 W ^" E
\2 a8 d* V! W4 y! k: w+ T; z1 joff the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 5 d( _+ R( |3 yTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。' a$ g1 d8 z* P& ^5 s3 t* _
cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of 0 Y% S/ B( g) [4 h, m% X. A3 I
# A- Q! X7 l$ oTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。space above the soil without any leaves. Do not use 6 G3 T }% H. X & s( {% r\" q3 E1 L6 ^8 |5.39.217.77:8898overhead watering. 8 n* v5 r$ ~ j8 r" O- DAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 9 B0 C. e6 ]/ ?# V/ Stvb now,tvbnow,bttvbConsider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow + z' i% N9 ?6 P J1 y5.39.217.77:8898TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。9 \6 Q: d& @8 Q$ `
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are 0 L0 M4 j( \' L s" @# qtvb now,tvbnow,bttvb公仔箱論壇; w4 g# M" z1 [4 V# ^% I: ~
wet. Keep your plants happy and healthy. Weak and stressed 5.39.217.77:88983 P; u* h/ U% d3 a9 [8 L
& _9 l% b$ A; O$ S% u3 n8 i
plants are more susceptible to disease. ; K+ t8 R4 Q- h5 e公仔箱論壇% J0 R# ]* j1 y( @5 q" w
Remove and destroy or throw away diseased leaves, both off the 5.39.217.77:8898- N) u; G+ H4 m. D$ }* x5 r
公仔箱論壇; i# F' G* v: G3 r G
plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early tvb now,tvbnow,bttvb" w. {- f U$ T, E! T4 |( \& w
: k( B3 F4 |8 ~6 A! l公仔箱論壇Late Blight on Tomato Plants5.39.217.77:8898! J$ u$ {3 N( ^+ F$ s) a9 Z ~! X
tvb now,tvbnow,bttvb. G4 L$ s3 U4 t) b3 l v e' `% B5 _5 R
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 4 i3 b9 v/ n* @+ E5 w
, r; H7 G D, u plants in a garden. Once a tomato plant / f: S! c1 M4 v& ?! [. c1 U: O公仔箱論壇 % E8 ~* U" F: s; _2 ois infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, " K, W1 R$ S4 T5 h" D3 ~. ?+ k5.39.217.77:8898. }$ l/ @4 b* q( a
water-soaked spots on leaves and stems that grow and turn dark brown or gray. A white downy growth may develop on the underside of infected leaves. Late blight5.39.217.77:88989 f6 L. h V- S2 C$ u2 N; s
公仔箱論壇1 {3 |3 B9 N% T5 u9 ? can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and 2 O9 F! f- Z$ @. N |* Ktvb now,tvbnow,bttvb# C7 _7 v" ]1 J8 \# Y$ o
Septoria leaf spot infections will also help prevent late blight infections.
